{"id":1328,"date":"2026-09-15T14:07:48","date_gmt":"2026-09-15T06:07:48","guid":{"rendered":"https:\/\/www.jingfenggroup.com\/insoluble-humic-acid-powder-70\/"},"modified":"2026-09-16T19:22:58","modified_gmt":"2026-09-16T11:22:58","slug":"insoluble-humic-acid-powder-70","status":"publish","type":"product_item","link":"https:\/\/www.jingfenggroup.com\/zh\/insoluble-humic-acid\/insoluble-humic-acid-powder-70\/","title":{"rendered":"Insoluble Humic Acid Powder 70% \u2013 Low-Ash Grade for Oilfield &#038; Industrial Humates"},"content":{"rendered":"<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 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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<div class=\"jf-wrap\">\n<nav class=\"jf-nav\">\n<a href=\"#overview\">Overview<\/a><br \/>\n<a href=\"#benefits\">Benefits<\/a><br \/>\n<a href=\"#specs\">Specs<\/a><br \/>\n<a href=\"#docs\">Documents<\/a><br \/>\n<a href=\"#solubility\">Form<\/a><br \/>\n<a href=\"#applications\">Applications<\/a><br \/>\n<a href=\"#packaging\">Packaging<\/a><br \/>\n<a href=\"#cases\">Cases<\/a><br \/>\n<a href=\"#faq\">FAQ<\/a><br \/>\n<\/nav>\n<div class=\"jf-hero\">\n<div class=\"jf-hero-eyebrow\">INSOLUBLE HUMIC ACID &middot; LEONARDITE POWDER 70%<\/div>\n<style>.wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder70, .wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder70[data-kb-block=\"kb-adv-headingkb-h1-powder70\"]{font-size:33px;font-style:normal;color:#ffffff;}.wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder70 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder70[data-kb-block=\"kb-adv-headingkb-h1-powder70\"] 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-powder70 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder70[data-kb-block=\"kb-adv-headingkb-h1-powder70\"] img.kb-inline-image{width:150px;vertical-align:baseline;}@media all and (max-width: 767px){.wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder70, .wp-block-kadence-advancedheading.kt-adv-headingkb-h1-powder70[data-kb-block=\"kb-adv-headingkb-h1-powder70\"]{font-size:26px;}}<\/style>\n<h1 class=\"kt-adv-heading kb-h1-powder70 jf-hero-title\">Insoluble Humic Acid Powder 70%<\/h1>\n<p class=\"jf-hero-tag\">The High-Humic, Low-Ash Cut for Drilling Fluid and Industrial Humates<\/p>\n<div class=\"jf-badges\">\n<span class=\"jf-badge\">Humic acid 70% min<\/span><br \/>\n<span class=\"jf-badge\">Organic matter 82% min<\/span><br \/>\n<span class=\"jf-badge\">Fineness 80\u2013100 mesh<\/span><br \/>\n<span class=\"jf-badge\">Code JFHA-HA-P70<\/span>\n<\/div>\n<p class=\"jf-hero-lead\"><strong>80\u2013100 mesh black powder &middot; 70% humic acid &middot; 82% organic matter &middot; low ash &middot; oilfield &#038; industrial<\/strong><\/p>\n<\/div>\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<p><strong>Insoluble Humic Acid Powder 70%<\/strong> is the top cut of our milled <a href=\"https:\/\/en.wikipedia.org\/wiki\/Leonardite\" target=\"_blank\" rel=\"noopener\">leonardite<\/a> powder \u2014 the same seam and 80\u2013100 mesh grind as the rest of the range, taken at the 70% humic-acid cut. It is dried, classified and bagged with no extraction and no chemical solubilisation, so the humic fraction stays in its native, <strong>water-insoluble form<\/strong>.<\/p>\n<p>What makes the 70% cut different from the lower grades is not just the humic number \u2014 it is the <strong>low ash content<\/strong>. Ash is the inert mineral residue left after the organic fraction burns off, and in oilfield and industrial use it is a liability: in a drilling fluid it adds unwanted solids; in a humate salt it dilutes the active content. The 70% cut carries the least ash of the powder range, which is why it is the grade specified for <strong>oilfield drilling-fluid<\/strong> use, for <strong>sulfonated humate<\/strong>, and for other <strong>industrial humate<\/strong> applications.<\/p>\n<p><strong>Insoluble Humic Acid Powder 70%<\/strong> is the premium cut \u2014 bought where the analysis and the ash floor matter more than the price per tonne.<\/p>\n<\/div>\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<div class=\"jf-grid\">\n<div class=\"jf-card\">\n<h4>Highest humic cut of the powder range<\/h4>\n<p>At 70% minimum humic acid and 82% minimum organic matter, this is the most concentrated insoluble powder we produce \u2014 the grade to specify when the humic number is the buying criterion.<\/p>\n<\/div>\n<div class=\"jf-card\">\n<h4>Low ash \u2014 the property oilfield and industry pay for<\/h4>\n<p>Ash is inert mineral residue. In a drilling fluid it is unwanted solids; in a humate salt it dilutes active content. The 70% cut carries the least ash of the range, which is why it is the oilfield and industrial grade.<\/p>\n<\/div>\n<div class=\"jf-card\">\n<h4>Drilling-fluid filter-loss reducer and mud conditioner<\/h4>\n<p>React or use directly as a freshwater drilling-fluid additive \u2014 reduces fluid loss and conditions the mud. Typical dosage 3\u20135% of the fluid system.<\/p>\n<\/div>\n<div class=\"jf-card\">\n<h4>Feedstock for sulfonated and other humate salts<\/h4>\n<p>Sulfomethylate to sulfonated humate, or react with caustic to sodium\/potassium humate, with the highest active content of the powder grades.<\/p>\n<\/div>\n<div class=\"jf-card\">\n<h4>One seam, four cuts, one supplier<\/h4>\n<p>40%, 50%, 60% and 70% off the same mill. Hold one relationship while covering soil amendment through to oilfield specification.<\/p>\n<\/div>\n<div class=\"jf-card\">\n<h4>Heavy metals below detection, every batch<\/h4>\n<p>Pb, As, Hg, Cd and Cr tested against GB 18877 and reported as not detected, with a batch-specific COA.<\/p>\n<\/div>\n<\/div>\n<\/div>\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<table class=\"jf-tb\">\n<thead>\n<tr>\n<th>Parameter<\/th>\n<th>Specification<\/th>\n<th>Test standard<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Humic acid (dry basis)<\/td>\n<td>70.0% min<\/td>\n<td>GB\/T 11957-2001<\/td>\n<\/tr>\n<tr>\n<td>Organic matter (dry basis)<\/td>\n<td>82.0% min<\/td>\n<td>NY 525-2012<\/td>\n<\/tr>\n<tr>\n<td>Moisture<\/td>\n<td>25.0% max<\/td>\n<td>GB\/T 11957-2001<\/td>\n<\/tr>\n<tr>\n<td>pH (1:100)<\/td>\n<td>5.0 \u2013 7.0<\/td>\n<td>GB\/T 33804-2017<\/td>\n<\/tr>\n<tr>\n<td>Fineness<\/td>\n<td>80 \u2013 100 mesh<\/td>\n<td>Sieve method<\/td>\n<\/tr>\n<tr>\n<td>Water solubility<\/td>\n<td>Nil (insoluble by design)<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>Ash (dry basis)<\/td>\n<td>Low \u2014 see note<\/td>\n<td>GB\/T 11957-2001<\/td>\n<\/tr>\n<tr>\n<td>Appearance<\/td>\n<td>Black powder<\/td>\n<td>Visual<\/td>\n<\/tr>\n<tr>\n<td>Product code<\/td>\n<td>JFHA-HA-P70<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<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<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<p><a class=\"jf-btn\" href=\"\/contact\/\">Request COA \/ MSDS \/ TDS<\/a>\n<\/div>\n<\/div>\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<p><strong>Form:<\/strong> dry <strong>black powder<\/strong>, 80\u2013100 mesh, slightly damp to the touch (up to 25% natural moisture). Free-flowing but not fluid.<\/p>\n<p><strong>In water:<\/strong> insoluble. It does not dissolve and must not enter fertigation, drip lines or liquid tanks. In oilfield use it is applied to the mud system as a functional additive, not as a solution.<\/p>\n<p><strong>As an industrial feedstock:<\/strong> the low-ash, high-humic cut reacts cleanly to sodium\/potassium humate and sulfonated humate, giving the highest active content of the powder grades.<\/p>\n<p><strong>In a dry blend:<\/strong> disperses well; expect dust control on the line.<\/p>\n<div class=\"jf-note\"><strong>Honest note:<\/strong> this is the premium cut \u2014 highest humic, lowest ash, specified for oilfield and industrial humates. If your use is soil or a bulk fertilizer, the 40% or 50% cut does the same soil job for far less money, and we will say so. The 70% cut earns its price only where the ash floor and humic number are the buying criteria.<\/div>\n<h3>Which insoluble grade fits your process?<\/h3>\n<table class=\"jf-tb jf-tb-cmp\">\n<thead>\n<tr>\n<th>Grade<\/th>\n<th>Form<\/th>\n<th>Humic acid<\/th>\n<th>Organic matter<\/th>\n<th>Size<\/th>\n<th>Best for<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><a href=\"https:\/\/www.jingfenggroup.com\/insoluble-humic-acid\/insoluble-humic-acid-powder-60\/\" target=\"_blank\" rel=\"noopener\"><strong>Humic Acid Powder<\/strong><\/a><\/td>\n<td>80\u2013100 mesh powder<\/td>\n<td>40\u201370%<\/td>\n<td>70\u201382%<\/td>\n<td>80\u2013100 mesh<\/td>\n<td>Granulation feed, soil conditioner base, blending<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.jingfenggroup.com\/insoluble-humic-acid\/insoluble-humic-acid-crystal\/\" target=\"_blank\" rel=\"noopener\"><strong>Humic Acid Crystal<\/strong><\/a><\/td>\n<td>2\u20134 mm crystal<\/td>\n<td>60% min<\/td>\n<td>\u2014<\/td>\n<td>2\u20134 \/ 1\u20136 mm<\/td>\n<td>Direct soil application, premium organic blends<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.jingfenggroup.com\/insoluble-humic-acid\/insoluble-humic-acid-granule\/\" target=\"_blank\" rel=\"noopener\"><strong>Humic Acid Granule<\/strong><\/a><\/td>\n<td>2\u20134 mm round granule<\/td>\n<td>40% min<\/td>\n<td>60% min<\/td>\n<td>2\u20134 mm<\/td>\n<td>Bulk blending, broadcasting, organic fertilizer<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.jingfenggroup.com\/insoluble-humic-acid\/insoluble-humic-acid-prills\/\" target=\"_blank\" rel=\"noopener\"><strong>Humic Acid Prills<\/strong><\/a><\/td>\n<td>2\u20134 mm high-hardness<\/td>\n<td>40% min<\/td>\n<td>60% min<\/td>\n<td>2\u20134 mm<\/td>\n<td>Urea\/blending, mechanical spreading, export<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.jingfenggroup.com\/insoluble-humic-acid\/microbial-humic-granular-fertilizer\/\" target=\"_blank\" rel=\"noopener\"><strong>Microbial Humic Granule<\/strong><\/a><\/td>\n<td>2\u20134 mm inoculated<\/td>\n<td>40% min<\/td>\n<td>60% min<\/td>\n<td>2\u20134 mm<\/td>\n<td>Bio-organic fertilizer, root-zone inoculation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<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<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<p class=\"jf-lead\">Specified where the humic number and the ash floor decide the buy:<\/p>\n<table class=\"jf-tb\">\n<thead>\n<tr>\n<th>Application<\/th>\n<th>How to use<\/th>\n<th>Rate<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Oilfield drilling fluid<\/td>\n<td>Freshwater drilling-fluid filter-loss reducer and mud conditioner. Applied to the mud system as a functional additive.<\/td>\n<td>3 \u2013 5% of fluid<\/td>\n<\/tr>\n<tr>\n<td>Sulfonated humate production<\/td>\n<td>Sulfomethylate to sulfonated humate for drilling, water treatment and ceramic use.<\/td>\n<td>per process<\/td>\n<\/tr>\n<tr>\n<td>Sodium \/ potassium humate feedstock<\/td>\n<td>React with caustic for the highest-active-content humate salts of the powder range.<\/td>\n<td>per process<\/td>\n<\/tr>\n<tr>\n<td>Ceramic pug additive<\/td>\n<td>Used as a binder\/plasticiser in ceramic bodies.<\/td>\n<td>per process<\/td>\n<\/tr>\n<tr>\n<td>Water treatment<\/td>\n<td>Applied for heavy-metal binding in industrial wastewater treatment.<\/td>\n<td>per process<\/td>\n<\/tr>\n<tr>\n<td>Premium soil &#038; organic use<\/td>\n<td>Where a high humic claim is registered and the ash floor matters.<\/td>\n<td>300\u2013750 kg\/ha<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\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<table class=\"jf-tb\">\n<thead>\n<tr>\n<th>Pack size<\/th>\n<th>Description<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>20 kg \/ 25 kg<\/td>\n<td>Woven PP bag with inner PE liner \u2014 standard export packing<\/td>\n<\/tr>\n<tr>\n<td>50 kg<\/td>\n<td>Woven PP bag with inner liner \u2014 for high-volume programmes<\/td>\n<\/tr>\n<tr>\n<td>1000\u20131100 kg<\/td>\n<td>Jumbo bag with discharge spout, 4 lifting loops<\/td>\n<\/tr>\n<tr>\n<td>Custom<\/td>\n<td>Private-label printed bag, OEM specification, retail sizes on request<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Storage:<\/strong> Store under cover, on pallets, in a dry ventilated place. Up to 25% moisture \u2014 keep off bare concrete. Stable for years; may compact slightly, 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<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<div class=\"jf-cases\">\n<a class=\"jf-case\" href=\"\/application\/agriculture\/\"><span class=\"jf-case-tag\">Industry &middot; Oilfield Humate<\/span><\/p>\n<h4>Oilfield chemical supplier, China<\/h4>\n<p>Buys 70% low-ash powder as a freshwater drilling-fluid filter-loss reducer. Specified the 70% cut specifically over 50\/60% because the lower ash means fewer inert solids in the mud system \u2014 the property their drilling customers actually measure. Typical inclusion 3\u20135% of the fluid.<\/p>\n<p><span class=\"jf-case-more\">Explore humic acid applications &#8594;<\/span><\/a><br \/>\n<a class=\"jf-case\" href=\"\/application\/agriculture\/\"><span class=\"jf-case-tag\">Industry &middot; Oilfield Humate<\/span><\/p>\n<h4>Humate-salt producer, Middle East<\/h4>\n<p>Reacts 70% powder to sodium and potassium humate for agriculture and water treatment. Chose the top cut because the higher humic and lower ash give the highest active content in the finished salt, which is what their specification states.<\/p>\n<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<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<div class=\"jf-faq\">\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\">\n<summary>Why is the 70% cut used in oilfield rather than the lower grades?<\/summary>\n<p>Because of the ash floor. Ash is inert mineral residue; in a drilling fluid it is unwanted solids, and in a humate salt it dilutes active content. The 70% cut carries the least ash of the powder range, so it is the grade oilfield and industrial buyers specify. The lower grades are soil and fertilizer grades, not oilfield grades.<\/p>\n<\/details>\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\">\n<summary>What does &#8216;low ash&#8217; mean in the spec table?<\/summary>\n<p>Ash is the mineral residue left after the organic fraction is removed. We state it as &#8216;low&#8217; because the value is grade-dependent and confirmed per batch on the COA rather than quoted as a single fixed number \u2014 ask for the COA of the exact cut you are ordering and we will state it.<\/p>\n<\/details>\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\">\n<summary>Can I react this to sodium or potassium humate?<\/summary>\n<p>Yes, and it gives the highest active content of the powder grades because of the high humic cut and low ash. We can toll the reaction or supply the finished salt.<\/p>\n<\/details>\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\">\n<summary>How does it differ from the 40\/50\/60% cuts?<\/summary>\n<p>Same seam and grind, different humic-acid cut \u2014 40\/50\/60\/70%. The 70% cut is the premium: highest humic, lowest ash, specified for oilfield and industrial humates. If you only need soil organic matter, the 40% cut is far cheaper and does the same job. Buy the cut your specification actually requires.<\/p>\n<\/details>\n<\/div>\n<\/div>\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<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-50\/\"><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 50% \u2013 Humate-Salt Feedstock &amp;#038; 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we will come back with specification, price and lead time.<\/p>\n<p><a href=\"https:\/\/www.jingfenggroup.com\/contact\">Request a Quote<\/a>\n<\/div>\n<\/div>\n<p><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><\/p>\n<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"Product\", \"name\": \"Insoluble Humic Acid Powder 70%\", \"description\": \"70% humic acid, low-ash leonardite powder for oilfield drilling fluid, sulfonated humate, ceramics and water treatment. 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Ash is inert mineral residue; in a drilling fluid it is unwanted solids, and in a humate salt it dilutes active content. The 70% cut carries the least ash of the powder range, so it is the grade oilfield and industrial buyers specify. The lower grades are soil and fertilizer grades, not oilfield grades.\"}}, {\"@type\": \"Question\", \"name\": \"What does 'low ash' mean in the spec table?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Ash is the mineral residue left after the organic fraction is removed. We state it as 'low' because the value is grade-dependent and confirmed per batch on the COA rather than quoted as a single fixed number \u2014 ask for the COA of the exact cut you are ordering and we will state it.\"}}, {\"@type\": \"Question\", \"name\": \"Can I react this to sodium or potassium humate?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, and it gives the highest active content of the powder grades because of the high humic cut and low ash. We can toll the reaction or supply the finished salt.\"}}, {\"@type\": \"Question\", \"name\": \"How does it differ from the 40\/50\/60% cuts?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Same seam and grind, different humic-acid cut \u2014 40\/50\/60\/70%. The 70% cut is the premium: highest humic, lowest ash, specified for oilfield and industrial humates. If you only need soil organic matter, the 40% cut is far cheaper and does the same job. Buy the cut your specification actually requires.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>70% humic acid, low-ash leonardite powder for oilfield drilling fluid, sulfonated humate, ceramics and water treatment. Highest humic cut. 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