{"id":881,"date":"2026-09-11T09:26:28","date_gmt":"2026-09-11T01:26:28","guid":{"rendered":"https:\/\/www.jingfenggroup.com\/insoluble-humic-acid-powder\/"},"modified":"2026-09-16T17:38:38","modified_gmt":"2026-09-16T09:38:38","slug":"insoluble-humic-acid-powder-60","status":"publish","type":"product_item","link":"https:\/\/www.jingfenggroup.com\/zh\/insoluble-humic-acid\/insoluble-humic-acid-powder-60\/","title":{"rendered":"Insoluble Humic Acid Powder 60% \u2013 Standard Grade from Leonardite"},"content":{"rendered":"\n<style>\n\/* \u57fa\u7840\u91cd\u7f6e + \u5168\u5c40\u5e73\u6ed1\u6eda\u52a8\uff08\u951a\u70b9\u515c\u5e95\uff09 *\/\nhtml{scroll-behavior:smooth;scroll-padding-top:78px;}\n.jf-wrap{max-width:1140px;margin:0 auto;padding:0 16px;box-sizing:border-box;}\n.jf-wrap *{box-sizing:border-box;}\n\/* \u9690\u85cf\u4e3b\u9898\u81ea\u52a8\u63d2\u5165\u7684 Table of contents\uff08\u4e0e\u60ac\u6d6e\u951a\u70b9\u5bfc\u822a\u91cd\u590d\uff09 *\/\n.toc-box{display:none 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rgba(0,77,77,.10);transform:translateY(-2px)}.jf-rel-img{display:block;aspect-ratio:1\/1;background:#f5fafa;overflow:hidden}.jf-rel-img img{width:100%;height:100%;object-fit:cover;display:block}.jf-rel-thumb .t{display:block;padding:9px 11px;font-size:13px;font-weight:600;color:#004d4d;line-height:1.35}<\/style>\n\n<div class=\"jf-wrap\">\n\n<nav class=\"jf-nav\">\n<a href=\"#overview\">Overview<\/a>\n<a href=\"#benefits\">Benefits<\/a>\n<a href=\"#specs\">Specs<\/a>\n<a href=\"#docs\">Documents<\/a>\n<a href=\"#solubility\">Form<\/a>\n<a href=\"#applications\">Applications<\/a>\n<a href=\"#packaging\">Packaging<\/a>\n<a href=\"#cases\">Cases<\/a>\n<a href=\"#faq\">FAQ<\/a>\n<\/nav>\n\n<div class=\"jf-hero\">\n<div class=\"jf-hero-eyebrow\">INSOLUBLE HUMIC ACID &middot; LEONARDITE POWDER<\/div>\n<style>.wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder, .wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder[data-kb-block=\"kb-adv-headingkb-h1-powder\"]{font-size:33px;font-style:normal;color:#ffffff;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder[data-kb-block=\"kb-adv-headingkb-h1-powder\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder[data-kb-block=\"kb-adv-headingkb-h1-powder\"] img.kb-inline-image{width:150px;vertical-align:baseline;}@media all and (max-width: 767px){.wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder, .wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder[data-kb-block=\"kb-adv-headingkb-h1-powder\"]{font-size:26px;}}<\/style>\n<h1 class=\"kt-adv-heading kb-h1-powder jf-hero-title\">Insoluble Humic Acid Powder 60%<\/h1>\n\n<p class=\"jf-hero-tag\">The Standard Leonardite Base Material Behind Soil Conditioners and Granulated Organics<\/p>\n<div class=\"jf-badges\">\n<span class=\"jf-badge\">Humic acid 60% min<\/span>\n<span class=\"jf-badge\">Organic matter 75% min<\/span>\n<span class=\"jf-badge\">Fineness 80\u2013100 mesh<\/span>\n<span class=\"jf-badge\">Code JFHA-HA-P<\/span>\n<\/div>\n<p class=\"jf-hero-lead\"><strong>80\u2013100 mesh black powder &middot; 60% humic acid &middot; 75% organic matter &middot; pH 5.0\u20137.0 &middot; water insoluble by design<\/strong><\/p>\n<\/div>\n\n<div class=\"jf-sec\" id=\"overview\">\n<style>.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-overview, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-overview[data-kb-block=\"kb-adv-headingkb-h2-overview\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-overview mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-overview[data-kb-block=\"kb-adv-headingkb-h2-overview\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-overview img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-overview[data-kb-block=\"kb-adv-headingkb-h2-overview\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2>Product Overview<\/h2>\n\n<p><strong>Insoluble Humic Acid Powder<\/strong> is milled and classified <a href=\"https:\/\/en.wikipedia.org\/wiki\/Leonardite\" target=\"_blank\" rel=\"noopener\">leonardite<\/a> \u2014 the naturally oxidised, humified layer of lignite that sits above the coal seam. Nothing is extracted, nothing is chemically solubilised. The material is dried, ground to 80\u2013100 mesh and bagged, which is why the humic fraction stays in its native, <strong>water-insoluble form<\/strong>.<\/p>\n<p>That insolubility is the point, not a defect. Soluble products (potassium humate, potassium fulvate) are made by reacting leonardite with KOH \u2014 that reaction costs money, and you pay for it per tonne. When the humic material is going into <strong>soil<\/strong>, into a <strong>granulation line<\/strong>, or into a <strong>composting or blending process<\/strong>, you do not need solubility. You need humic acid content, organic matter, and a price that lets you use it at hundreds of kilos per hectare.<\/p>\n<p><strong>Insoluble Humic Acid Powder<\/strong> is our standard grade for that job. It is the feedstock most of our granulation customers start from, and the base most soil-conditioner blenders build on.<\/p>\n<p>We grade this powder at <strong>40%, 50%, 60% and 70% humic acid<\/strong> from the same seam and mill \u2014 different cut, same material. This page covers the <strong>60% standard stock grade<\/strong>, which is the feedstock most granulation and soil-conditioner customers start from. The <a href=\"https:\/\/www.jingfenggroup.com\/insoluble-humic-acid\/insoluble-humic-acid-powder-40\/\">40%<\/a>, <a href=\"https:\/\/www.jingfenggroup.com\/insoluble-humic-acid\/insoluble-humic-acid-powder-50\/\">50%<\/a> and <a href=\"https:\/\/www.jingfenggroup.com\/insoluble-humic-acid\/insoluble-humic-acid-powder-70\/\">70%<\/a> cuts have their own pages for buyers held to a specific humic-acid claim or a low-ash industrial specification.<\/p>\n<\/div>\n\n<div class=\"jf-sec\" id=\"benefits\">\n<style>.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-benefits, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-benefits[data-kb-block=\"kb-adv-headingkb-h2-benefits\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-benefits mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-benefits[data-kb-block=\"kb-adv-headingkb-h2-benefits\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-benefits img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-benefits[data-kb-block=\"kb-adv-headingkb-h2-benefits\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2>Key Benefits<\/h2>\n\n<div class=\"jf-grid\"><div class=\"jf-card\"><h4>Humic acid without the solubility premium<\/h4><p>Solubilising leonardite with KOH raises the price per tonne substantially. If your product goes into soil rather than into a tank, you are paying for a property you will never use. This powder gives you the humic acid at raw-material pricing.<\/p><\/div><div class=\"jf-card\"><h4>80\u2013100 mesh grinds clean and blends evenly<\/h4><p>The particle size is chosen to disperse through a dry blend without balling or streaking. It also wets out properly in a disc or drum granulator, which is where most of this grade ends up.<\/p><\/div><div class=\"jf-card\"><h4>Four humic-acid grades from one seam<\/h4><p>40%, 50%, 60% and 70% \u2014 you can hold one supplier and one specification sheet while covering an entry-level soil conditioner and a premium registered organic product.<\/p><\/div><div class=\"jf-card\"><h4>Genuine long-term soil behaviour<\/h4><p>Because the humic fraction is not solubilised, it does not flush through the profile with the first irrigation. It stays where you put it and works across seasons \u2014 which is exactly what a soil-conditioning programme needs.<\/p><\/div><div class=\"jf-card\"><h4>Raises organic matter, not just the label<\/h4><p>At 75% minimum organic matter (60% grade), this is a real contributor to soil organic carbon, not a trace additive. Useful where your market measures organic matter content directly.<\/p><\/div><div class=\"jf-card\"><h4>Heavy metals below detection, every batch<\/h4><p>Pb, As, Hg, Cd and Cr are tested against GB 18877 and reported as not detected. Every shipment travels with its own COA \u2014 no pooled or generic certificates.<\/p><\/div><\/div>\n<\/div>\n\n<div class=\"jf-sec\" id=\"specs\">\n<style>.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-specs, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-specs[data-kb-block=\"kb-adv-headingkb-h2-specs\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-specs mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-specs[data-kb-block=\"kb-adv-headingkb-h2-specs\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-specs img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-specs[data-kb-block=\"kb-adv-headingkb-h2-specs\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2>Technical Specification<\/h2>\n\n<table class=\"jf-tb\"><thead><tr><th>Parameter<\/th><th>Specification<\/th><th>Test standard<\/th><\/tr><\/thead><tbody><tr><td>Humic acid (dry basis)<\/td><td>60.0% min<\/td><td>GB\/T 11957-2001<\/td><\/tr><tr><td>Free humic acid (dry basis)<\/td><td>60.0% min<\/td><td>GB\/T 11957-2001<\/td><\/tr><tr><td>Organic matter (dry basis)<\/td><td>75.0% min<\/td><td>NY 525-2012<\/td><\/tr><tr><td>Moisture<\/td><td>25.0% max<\/td><td>GB\/T 11957-2001<\/td><\/tr><tr><td>pH (1:100)<\/td><td>5.0 \u2013 7.0<\/td><td>GB\/T 33804-2017<\/td><\/tr><tr><td>Fineness<\/td><td>80 \u2013 100 mesh<\/td><td>Sieve method<\/td><\/tr><tr><td>Water solubility<\/td><td>Nil (insoluble by design)<\/td><td>\u2014<\/td><\/tr><tr><td>Appearance<\/td><td>Black powder<\/td><td>Visual<\/td><\/tr><tr><td>Product code<\/td><td>JFHA-HA-P<\/td><td>\u2014<\/td><\/tr><\/tbody><\/table><p class=\"jf-sub\">Specification values are guaranteed minimums on a dry basis, taken from the batch Certificate of Analysis and tested against the stated Chinese industry standards. Every shipment travels with its own COA stating the tested values.<\/p>\n\n<div class=\"jf-doc-cta\" id=\"docs\">\n<p class=\"jf-doc-cta-txt\">Need the full Certificate of Analysis, MSDS, or TDS for your formulation or tender file?<\/p>\n<a class=\"jf-btn\" href=\"\/contact\/\">Request COA \/ MSDS \/ TDS<\/a>\n<\/div>\n<\/div>\n\n<div class=\"jf-sec\" id=\"solubility\">\n<style>.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-sol, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-sol[data-kb-block=\"kb-adv-headingkb-h2-sol\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-sol mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-sol[data-kb-block=\"kb-adv-headingkb-h2-sol\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-sol img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-sol[data-kb-block=\"kb-adv-headingkb-h2-sol\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2>Form &amp; Solubility<\/h2>\n\n<p><strong>Form:<\/strong> dry <strong>black powder<\/strong>, 80\u2013100 mesh, slightly damp to the touch because it carries natural moisture (up to 25%). Flow is free but not fluid \u2014 it will not run like a fertiliser salt.<\/p>\n<p><strong>In water:<\/strong> it does not dissolve, and it is not meant to. Stir a spoonful into a glass and you get a brown-black suspension that settles within minutes. <strong>Do not put this product into a fertigation system, a drip line, or a liquid fertiliser tank<\/strong> \u2014 it will block emitters and filters. If you need a liquid, ask for potassium humate or potassium fulvate instead.<\/p>\n<p><strong>In the granulator:<\/strong> this is where it performs. The 80\u2013100 mesh grind accepts a binder, wets evenly under spray, and builds round granules in a disc or drum without generating excessive fines.<\/p>\n<p><strong>In a dry blend:<\/strong> it disperses well but it is fine and dark \u2014 expect dust control measures on the line, and expect the blend to darken.<\/p>\n<div class=\"jf-note\"><strong>Honest note:<\/strong> this powder does not dissolve, and no amount of stirring will change that. If your process involves a tank, a filter or an emitter, this is the wrong product and we will say so on the first call. It earns its place in soil application, dry blending and granulation, where solubility is a cost you would be paying for nothing.<\/div>\n\n<h3>Which insoluble grade fits your process?<\/h3>\n<table class=\"jf-tb jf-tb-cmp\"><thead><tr><th>Grade<\/th><th>Form<\/th><th>Humic acid<\/th><th>Organic matter<\/th><th>Size<\/th><th>Best for<\/th><\/tr><\/thead><tbody><tr><td><strong>Humic Acid Powder<\/strong> <em>(this product)<\/em><\/td><td>80\u2013100 mesh powder<\/td><td>40\u201370%<\/td><td>70\u201382%<\/td><td>80\u2013100 mesh<\/td><td>Granulation feed, soil conditioner base, blending<\/td><\/tr><tr><td><strong>Humic Acid Crystal<\/strong><\/td><td>2\u20134 mm crystal<\/td><td>60% min<\/td><td>\u2014<\/td><td>2\u20134 \/ 1\u20136 mm<\/td><td>Direct soil application, premium organic blends<\/td><\/tr><tr><td><strong>Humic Acid Granule<\/strong><\/td><td>2\u20134 mm round granule<\/td><td>40% min<\/td><td>60% min<\/td><td>2\u20134 mm<\/td><td>Bulk blending, broadcasting, organic fertilizer<\/td><\/tr><tr><td><strong>Humic Acid Prills<\/strong><\/td><td>2\u20134 mm high-hardness<\/td><td>40% min<\/td><td>60% min<\/td><td>2\u20134 mm<\/td><td>Urea\/blending, mechanical spreading, export<\/td><\/tr><tr><td><strong>Microbial Humic Granule<\/strong><\/td><td>2\u20134 mm inoculated<\/td><td>40% min<\/td><td>60% min<\/td><td>2\u20134 mm<\/td><td>Bio-organic fertilizer, root-zone inoculation<\/td><\/tr><\/tbody><\/table><p class=\"jf-sub\">All five grades come from the same leonardite seam and carry the same heavy-metal declaration (Pb, As, Hg, Cd, Cr all below detection, GB 18877). They differ in <em>particle form<\/em> and <em>where they fit in your process<\/em> &mdash; not in origin.<\/p>\n<\/div>\n\n<div class=\"jf-sec\" id=\"applications\">\n<style>.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-apps, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-apps[data-kb-block=\"kb-adv-headingkb-h2-apps\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-apps mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-apps[data-kb-block=\"kb-adv-headingkb-h2-apps\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-apps img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-apps[data-kb-block=\"kb-adv-headingkb-h2-apps\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2>Applications &amp; Dosage<\/h2>\n\n<p class=\"jf-lead\">This is a <strong>soil and process material<\/strong>, not a tank material. Every use below is dry application or further processing:<\/p>\n<table class=\"jf-tb\"><thead><tr><th>Application<\/th><th>How to use<\/th><th>Rate<\/th><\/tr><\/thead><tbody><tr><td>Soil conditioner base<\/td><td>Blend with bentonite, lime, gypsum or composted manure to build a bagged soil conditioner. The powder supplies the humic fraction and the dark colour.<\/td><td>20\u201340% of formulation<\/td><\/tr><tr><td>Granulation feedstock<\/td><td>Feed directly into a disc or drum granulator with binder to produce humic granules, or co-granulate with NPK and organic materials.<\/td><td>10\u201350% of formulation<\/td><\/tr><tr><td>Compound organic fertilizer<\/td><td>Add to an organic or organic-mineral fertilizer line to lift organic matter and humic acid to registered levels.<\/td><td>10\u201330% of formulation<\/td><\/tr><tr><td>Broadcast soil application<\/td><td>Spread and incorporate before planting on depleted, sandy or compacted ground. Incorporation matters \u2014 the material has to reach the root zone.<\/td><td>300\u2013750 kg\/ha<\/td><\/tr><tr><td>Saline\u2013sodic and reclamation ground<\/td><td>Apply ahead of leaching on Problem soils. The humic fraction improves structure so salts can actually move through the profile.<\/td><td>750\u20131500 kg\/ha<\/td><\/tr><tr><td>Composting and manure treatment<\/td><td>Add to the windrow to reduce nitrogen volatilisation and bind ammonia during composting.<\/td><td>2\u20135% by weight<\/td><\/tr><\/tbody><\/table>\n<\/div>\n\n<div class=\"jf-sec\" id=\"packaging\">\n<style>.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-pack, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-pack[data-kb-block=\"kb-adv-headingkb-h2-pack\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-pack mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-pack[data-kb-block=\"kb-adv-headingkb-h2-pack\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-pack img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-pack[data-kb-block=\"kb-adv-headingkb-h2-pack\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2>Packaging &amp; Storage<\/h2>\n\n<table class=\"jf-tb\"><thead><tr><th>Pack size<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>20 kg \/ 25 kg<\/td><td>Woven PP bag with inner PE liner \u2014 standard export packing<\/td><\/tr><tr><td>50 kg<\/td><td>Woven PP bag with inner liner \u2014 for high-volume programmes<\/td><\/tr><tr><td>1000\u20131100 kg<\/td><td>Jumbo bag with discharge spout, 4 lifting loops<\/td><\/tr><tr><td>Custom<\/td><td>Private-label printed bag, OEM specification, retail sizes on request<\/td><\/tr><\/tbody><\/table>\n<p><strong>Storage:<\/strong> Store under cover in a dry, ventilated place. The powder carries up to 25% moisture and will absorb more if it sits on a damp floor \u2014 keep it on pallets, not directly on concrete. Bags are lined, but lined is not waterproof.\n\nUnder those conditions the material is stable for years; it does not degrade, oxidise further, or lose humic acid content. It may compact slightly in the bag over time, which breaks up easily. Shelf life: 24 months in original, unopened packaging.<\/p>\n<p class=\"jf-sub\">Custom packaging, private-label printing and OEM specifications are available on request. Packaging photos are available in the product gallery.<\/p>\n<\/div>\n\n<div class=\"jf-sec\" id=\"cases\">\n<style>.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-cases, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-cases[data-kb-block=\"kb-adv-headingkb-h2-cases\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-cases mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-cases[data-kb-block=\"kb-adv-headingkb-h2-cases\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-cases img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-cases[data-kb-block=\"kb-adv-headingkb-h2-cases\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2>Successful Cases<\/h2>\n\n<div class=\"jf-cases\">\n<a class=\"jf-case\" href=\"\/application\/agriculture\/\"><span class=\"jf-case-tag\">Agriculture &middot; Soil Conditioning<\/span><h4>Organic fertilizer plant, Shandong<\/h4><p>Runs 60% powder through a disc granulator at 35% of formulation to produce a registered organic-mineral fertilizer. Chose the powder over a soluble potassium humate purely on cost per unit of humic acid \u2014 at 35% inclusion the KOH route was roughly three times the raw-material cost with no measurable difference in the registered analysis.<\/p><span class=\"jf-case-more\">Explore humic acid applications &#8594;<\/span><\/a>\n<a class=\"jf-case\" href=\"\/application\/agriculture\/\"><span class=\"jf-case-tag\">Agriculture &middot; Soil Conditioning<\/span><h4>Soil conditioner blender, India<\/h4><p>Blends 70% powder with bentonite and gypsum for a retail soil conditioner sold into the vegetable belt. Buys the 70% grade because the label claim is regulated on humic acid content, and the extra points let them hit the claim at a lower inclusion rate.<\/p><span class=\"jf-case-more\">Explore humic acid applications &#8594;<\/span><\/a>\n<\/div>\n<p class=\"jf-sub\">Full case studies with crop data are published in our application sectors.<\/p>\n<\/div>\n\n<div class=\"jf-sec\" id=\"faq\">\n<style>.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-faq, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-faq[data-kb-block=\"kb-adv-headingkb-h2-faq\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-faq mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-faq[data-kb-block=\"kb-adv-headingkb-h2-faq\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-faq img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-faq[data-kb-block=\"kb-adv-headingkb-h2-faq\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2>Frequently Asked Questions<\/h2>\n\n<div class=\"jf-faq\">\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Is &#8216;insoluble&#8217; a lower-quality product?<\/summary>\n\n<p>No \u2014 it is a different one, aimed at a different job. Soluble humates are made by reacting leonardite with potassium hydroxide, which adds real cost. That cost only pays off if the material has to dissolve \u2014 liquid fertilizers, fertigation, foliar. If the material is going into soil or into a granulator, solubility is an expensive property you never use. Buying insoluble for a soil programme is the correct economic choice, not a compromise.<\/p>\n\n<\/details>\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Can I use this through drip irrigation or in a liquid fertilizer?<\/summary>\n\n<p>No, and this is the most common costly mistake with the product. It will not dissolve; the solids will settle and block emitters and filters. For anything that has to pass through a line, use <a href=\"https:\/\/www.jingfenggroup.com\/humic-fulvic-acid\/potassium-fulvate-flakes-i\/\">potassium fulvate<\/a> or potassium humate instead. We would rather tell you now than ship you the wrong material.<\/p>\n\n<\/details>\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Which grade \u2014 40, 50, 60 or 70% \u2014 should I buy?<\/summary>\n\n<p>Buy the lowest grade that still hits the number you are held to. If you sell on organic matter with no humic acid claim, 40% is the cheapest route to it. If your label or registration states a humic acid percentage, work backwards from that claim and the inclusion rate you can afford \u2014 often 60% at a higher inclusion beats 70% at a low one on cost per label point. Send us your target analysis and we will run both.<\/p>\n\n<\/details>\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>How is this different from potassium humate?<\/summary>\n\n<p>Same raw material, different chemistry. Potassium humate is leonardite reacted with KOH, giving a water-soluble potassium salt at roughly 60% humic acid and 10% K\u2082O \u2014 for tanks, drip and foliar. This powder is milled leonardite with no reaction step: insoluble, higher organic matter per tonne, considerably cheaper, and intended for soil and granulation. Neither is better; they serve different processes.<\/p>\n\n<\/details>\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>What is the difference between total and free humic acid?<\/summary>\n\n<p>Total humic acid is the whole humic fraction extracted under the standard method. Free humic acid is the portion not bound up with calcium, magnesium or iron in the matrix \u2014 in practice the part most readily available. On our 60% grade both are guaranteed at 60% minimum, meaning essentially the entire humic fraction is in free form. Cheaper materials often show a large gap between the two numbers.<\/p>\n\n<\/details>\n\n<\/div>\n<\/div>\n\n<div class=\"jf-sec\" id=\"related\">\n<style>.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-rel, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-rel[data-kb-block=\"kb-adv-headingkb-h2-rel\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-rel mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-rel[data-kb-block=\"kb-adv-headingkb-h2-rel\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h2-rel img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-headingkb-h2-rel[data-kb-block=\"kb-adv-headingkb-h2-rel\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2>Also Available in This Family<\/h2>\n\n<div class=\"jf-rel-strip\"><a class=\"jf-rel-thumb\" target=\"_blank\" rel=\"noopener\" href=\"https:\/\/www.jingfenggroup.com\/insoluble-humic-acid\/insoluble-humic-acid-powder-70\/\"><span class=\"jf-rel-img\"><img src=\"https:\/\/www.jingfenggroup.com\/wp-content\/uploads\/2026\/09\/Insoluble-Humic-Acid-Powder-150x150.webp\" alt=\"Insoluble Humic Acid Powder 70% \u2013 Low-Ash Grade for Oilfield &amp;#038; 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we will come back with specification, price and lead time.<\/p>\n<a href=\"https:\/\/www.jingfenggroup.com\/contact\">Request a Quote<\/a>\n<\/div>\n\n<\/div>\n\n<script>\n(function(){\n  function init(){\n    var nav=document.querySelector('.jf-nav');\n    if(!nav){return;}\n    var links=[].slice.call(nav.querySelectorAll('a'));\n    function targetOf(a){\n      var h=a.getAttribute('href');\n      if(h){ if(h.charAt(0)==='#'){ return document.querySelector(h); } }\n      return null;\n    }\n    var secs=links.map(targetOf);\n    var ticking=false;\n    function onScroll(){\n      var navH=nav.offsetHeight;\n      var y=window.pageYOffset+navH+30;\n      var cur=0;\n      for(var i=0;i<secs.length;i++){\n        if(secs[i]){\n          if(secs[i].getBoundingClientRect().top+window.pageYOffset<=y){ cur=i; }\n        }\n      }\n      for(var j=0;j<links.length;j++){ links[j].classList.toggle('jf-active',j===cur); }\n      if(links[cur]){\n        if(nav.scrollWidth>nav.clientWidth){\n          var l=links[cur];\n          nav.scrollTo({left:l.offsetLeft-nav.clientWidth\/2+l.offsetWidth\/2,behavior:'smooth'});\n        }\n      }\n    }\n    links.forEach(function(a){\n      a.addEventListener('click',function(e){\n        var t=targetOf(a);\n        if(!t){return;}\n        e.preventDefault();\n        var navH=nav.offsetHeight;\n        var rect=t.getBoundingClientRect();\n        var top=rect.top+window.pageYOffset-navH-14;\n        if(top<0){top=0;}\n        window.scrollTo({top:top,behavior:'smooth'});\n        links.forEach(function(x){x.classList.remove('jf-active');});\n        a.classList.add('jf-active');\n      });\n    });\n    window.addEventListener('scroll',function(){\n      if(!ticking){ window.requestAnimationFrame(function(){ onScroll(); ticking=false; }); ticking=true; }\n    },{passive:true});\n    window.addEventListener('resize',onScroll);\n    onScroll();\n  }\n  if(document.readyState==='loading'){ document.addEventListener('DOMContentLoaded',init); } else { init(); }\n})();\n<\/script>\n\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"Product\", \"name\": \"Insoluble Humic Acid Powder 60%\", \"description\": \"Water-insoluble humic acid powder from leonardite: 60% humic acid, 75% organic matter, 80\u2013100 mesh. 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COA per batch.\", \"brand\": {\"@type\": \"Brand\", \"name\": \"JINGFENG\"}, \"material\": \"Leonardite\", \"category\": \"Insoluble humic acid \/ leonardite raw material\", \"additionalProperty\": [{\"@type\": \"PropertyValue\", \"name\": \"Fulvic acid (dry basis)\", \"value\": \"\"}, {\"@type\": \"PropertyValue\", \"name\": \"Humic acid (dry basis)\", \"value\": \"60.0% min\"}, {\"@type\": \"PropertyValue\", \"name\": \"Potassium as K2O (dry basis)\", \"value\": \"\"}, {\"@type\": \"PropertyValue\", \"name\": \"Water solubility\", \"value\": \"\"}, {\"@type\": \"PropertyValue\", \"name\": \"pH\", \"value\": \"5.0 \u2013 7.0\"}, {\"@type\": \"PropertyValue\", \"name\": \"Form \/ particle size\", \"value\": \"Black powder\"}], \"url\": \"https:\/\/www.jingfenggroup.com\/insoluble-humic-acid\/insoluble-humic-acid-powder-60\/\", \"offers\": {\"@type\": \"AggregateOffer\", \"priceCurrency\": \"USD\", \"availability\": \"https:\/\/schema.org\/InStock\", \"url\": \"https:\/\/www.jingfenggroup.com\/insoluble-humic-acid\/insoluble-humic-acid-powder-60\/\"}, \"sku\": \"JFHA-HA-P\", \"image\": [\"https:\/\/www.jingfenggroup.com\/wp-content\/uploads\/2026\/09\/Insoluble-Humic-Acid-Powder.webp\"]}<\/script>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is 'insoluble' a lower-quality product?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No \u2014 it is a different one, aimed at a different job. Soluble humates are made by reacting leonardite with potassium hydroxide, which adds real cost. That cost only pays off if the material has to dissolve \u2014 liquid fertilizers, fertigation, foliar. If the material is going into soil or into a granulator, solubility is an expensive property you never use. Buying insoluble for a soil programme is the correct economic choice, not a compromise.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this through drip irrigation or in a liquid fertilizer?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No, and this is the most common costly mistake with the product. It will not dissolve; the solids will settle and block emitters and filters. For anything that has to pass through a line, use potassium fulvate or potassium humate instead. We would rather tell you now than ship you the wrong material.\"}}, {\"@type\": \"Question\", \"name\": \"Which grade \u2014 40, 50, 60 or 70% \u2014 should I buy?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Buy the lowest grade that still hits the number you are held to. If you sell on organic matter with no humic acid claim, 40% is the cheapest route to it. If your label or registration states a humic acid percentage, work backwards from that claim and the inclusion rate you can afford \u2014 often 60% at a higher inclusion beats 70% at a low one on cost per label point. Send us your target analysis and we will run both.\"}}, {\"@type\": \"Question\", \"name\": \"How is this different from potassium humate?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Same raw material, different chemistry. Potassium humate is leonardite reacted with KOH, giving a water-soluble potassium salt at roughly 60% humic acid and 10% K\u2082O \u2014 for tanks, drip and foliar. This powder is milled leonardite with no reaction step: insoluble, higher organic matter per tonne, considerably cheaper, and intended for soil and granulation. Neither is better; they serve different processes.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between total and free humic acid?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Total humic acid is the whole humic fraction extracted under the standard method. Free humic acid is the portion not bound up with calcium, magnesium or iron in the matrix \u2014 in practice the part most readily available. On our 60% grade both are guaranteed at 60% minimum, meaning essentially the entire humic fraction is in free form. Cheaper materials often show a large gap between the two numbers.\"}}]}<\/script>","protected":false},"excerpt":{"rendered":"<p>Water-insoluble humic acid powder from leonardite: 60% humic acid, 75% organic matter, 80\u2013100 mesh. 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