{"id":6865,"date":"2025-09-16T02:26:51","date_gmt":"2025-09-16T02:26:51","guid":{"rendered":"https:\/\/saphydrogels.com\/?p=6865"},"modified":"2025-09-16T02:26:51","modified_gmt":"2025-09-16T02:26:51","slug":"technical-report-potassium-polyacrylate-for-agricultural-applications","status":"publish","type":"post","link":"https:\/\/saphydrogels.com\/en_nz\/technical-report-potassium-polyacrylate-for-agricultural-applications\/","title":{"rendered":"Technical Report: Potassium Polyacrylate for Agricultural Applications"},"content":{"rendered":"<p data-start=\"508\" data-end=\"583\"><strong data-start=\"508\" data-end=\"583\">Focus on Certificates of Analysis (COA) and Maximum Absorption Capacity<\/strong><\/p>\n<hr data-start=\"585\" data-end=\"588\" \/>\n<h2 data-start=\"590\" data-end=\"610\">1. Introduction<\/h2>\n<p data-start=\"612\" data-end=\"1155\">Potassium polyacrylate (PAA-K), commonly referred to as a superabsorbent polymer (SAP), has become one of the most widely applied water-retention agents in modern agriculture. It plays a critical role in enhancing soil water management, improving fertilizer efficiency, and enabling sustainable agricultural practices in water-stressed environments. In the fertilizer and pesticide industry, potassium polyacrylate not only improves the water-holding capacity of soils but also enhances the controlled release of nutrients and agrochemicals.<\/p>\n<p data-start=\"1157\" data-end=\"1558\">This report provides detailed information on the <strong data-start=\"1206\" data-end=\"1241\">Certificates of Analysis (COAs)<\/strong> for different commercial grades of potassium polyacrylate offered for agricultural and industrial applications. Furthermore, it outlines the <strong data-start=\"1383\" data-end=\"1416\">maximum absorption capacities<\/strong> achievable under various conditions and discusses the significance of these metrics for end users in fertilizer and pesticide formulations.<\/p>\n<hr data-start=\"1560\" data-end=\"1563\" \/>\n<h2 data-start=\"1565\" data-end=\"1607\">2. Overview of <a href=\"http:\/\/saphydrogels.com\">Potassium Polyacrylate<\/a><\/h2>\n<h3 data-start=\"1609\" data-end=\"1636\">2.1 Chemical Identity<\/h3>\n<ul data-start=\"1637\" data-end=\"1900\">\n<li data-start=\"1637\" data-end=\"1680\">\n<p data-start=\"1639\" data-end=\"1680\"><strong data-start=\"1639\" data-end=\"1660\">Chemical Formula:<\/strong> [\u2013CH\u2082\u2013CH(CO\u2082K)\u2013]\u2099<\/p>\n<\/li>\n<li data-start=\"1681\" data-end=\"1711\">\n<p data-start=\"1683\" data-end=\"1711\"><strong data-start=\"1683\" data-end=\"1698\">CAS Number:<\/strong> 25608-12-2<\/p>\n<\/li>\n<li data-start=\"1712\" data-end=\"1774\">\n<p data-start=\"1714\" data-end=\"1774\"><strong data-start=\"1714\" data-end=\"1729\">Appearance:<\/strong> White to off-white granular or powder form<\/p>\n<\/li>\n<li data-start=\"1775\" data-end=\"1900\">\n<p data-start=\"1777\" data-end=\"1900\"><strong data-start=\"1777\" data-end=\"1792\">Solubility:<\/strong> Insoluble in water but capable of absorbing and retaining water up to several hundred times its own mass.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1902\" data-end=\"1933\">2.2 Functional Properties<\/h3>\n<ol data-start=\"1934\" data-end=\"2428\">\n<li data-start=\"1934\" data-end=\"2028\">\n<p data-start=\"1937\" data-end=\"2028\"><strong data-start=\"1937\" data-end=\"1956\">Superabsorbency<\/strong>: Absorbs and retains water efficiently, forming a gel-like structure.<\/p>\n<\/li>\n<li data-start=\"2029\" data-end=\"2117\">\n<p data-start=\"2032\" data-end=\"2117\"><strong data-start=\"2032\" data-end=\"2052\">Release Behavior<\/strong>: Capable of releasing absorbed water gradually to plant roots.<\/p>\n<\/li>\n<li data-start=\"2118\" data-end=\"2335\">\n<p data-start=\"2121\" data-end=\"2335\"><strong data-start=\"2121\" data-end=\"2139\">Salt Tolerance<\/strong>: Unlike sodium polyacrylate, potassium polyacrylate is more suitable for agricultural applications because it supplies potassium, a plant macronutrient, instead of sodium, which can be harmful.<\/p>\n<\/li>\n<li data-start=\"2336\" data-end=\"2428\">\n<p data-start=\"2339\" data-end=\"2428\"><strong data-start=\"2339\" data-end=\"2353\">Durability<\/strong>: Stable in soil for several years, depending on soil microbial activity.<\/p>\n<\/li>\n<\/ol>\n<hr data-start=\"2430\" data-end=\"2433\" \/>\n<h2 data-start=\"2435\" data-end=\"2492\">3. Applications in Fertilizer and Pesticide Industry<\/h2>\n<ol data-start=\"2494\" data-end=\"3085\">\n<li data-start=\"2494\" data-end=\"2662\">\n<p data-start=\"2497\" data-end=\"2524\"><strong data-start=\"2497\" data-end=\"2522\">Fertilizer Efficiency<\/strong><\/p>\n<ul data-start=\"2528\" data-end=\"2662\">\n<li data-start=\"2528\" data-end=\"2605\">\n<p data-start=\"2530\" data-end=\"2605\">Enhances nitrogen, phosphorus, and potassium uptake by reducing leaching.<\/p>\n<\/li>\n<li data-start=\"2609\" data-end=\"2662\">\n<p data-start=\"2611\" data-end=\"2662\">Prolongs fertilizer residence in the rhizosphere.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2664\" data-end=\"2824\">\n<p data-start=\"2667\" data-end=\"2705\"><strong data-start=\"2667\" data-end=\"2703\">Pesticide Retention and Delivery<\/strong><\/p>\n<ul data-start=\"2709\" data-end=\"2824\">\n<li data-start=\"2709\" data-end=\"2764\">\n<p data-start=\"2711\" data-end=\"2764\">Reduces pesticide runoff and volatilization losses.<\/p>\n<\/li>\n<li data-start=\"2768\" data-end=\"2824\">\n<p data-start=\"2770\" data-end=\"2824\">Provides a slow-release matrix for active compounds.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2826\" data-end=\"2967\">\n<p data-start=\"2829\" data-end=\"2853\"><strong data-start=\"2829\" data-end=\"2851\">Water Conservation<\/strong><\/p>\n<ul data-start=\"2857\" data-end=\"2967\">\n<li data-start=\"2857\" data-end=\"2917\">\n<p data-start=\"2859\" data-end=\"2917\">Increases water-holding capacity of sandy or arid soils.<\/p>\n<\/li>\n<li data-start=\"2921\" data-end=\"2967\">\n<p data-start=\"2923\" data-end=\"2967\">Reduces irrigation frequency by up to 50%.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2969\" data-end=\"3085\">\n<p data-start=\"2972\" data-end=\"3009\"><strong data-start=\"2972\" data-end=\"3007\">Crop Yield and Stress Tolerance<\/strong><\/p>\n<ul data-start=\"3013\" data-end=\"3085\">\n<li data-start=\"3013\" data-end=\"3085\">\n<p data-start=\"3015\" data-end=\"3085\">Improves germination rate, root development, and drought resistance.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<hr data-start=\"3087\" data-end=\"3090\" \/>\n<h2 data-start=\"3092\" data-end=\"3157\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-6866\" src=\"https:\/\/saphydrogels.com\/wp-content\/uploads\/2025\/09\/Potassium-Polyacrylate-for-Agricultural-Applications.png\" alt=\"\" width=\"1024\" height=\"1024\" srcset=\"https:\/\/saphydrogels.com\/wp-content\/uploads\/2025\/09\/Potassium-Polyacrylate-for-Agricultural-Applications.png 1024w, https:\/\/saphydrogels.com\/wp-content\/uploads\/2025\/09\/Potassium-Polyacrylate-for-Agricultural-Applications-300x300.png 300w, https:\/\/saphydrogels.com\/wp-content\/uploads\/2025\/09\/Potassium-Polyacrylate-for-Agricultural-Applications-150x150.png 150w, https:\/\/saphydrogels.com\/wp-content\/uploads\/2025\/09\/Potassium-Polyacrylate-for-Agricultural-Applications-768x768.png 768w, https:\/\/saphydrogels.com\/wp-content\/uploads\/2025\/09\/Potassium-Polyacrylate-for-Agricultural-Applications-12x12.png 12w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/h2>\n<h2 data-start=\"3092\" data-end=\"3157\">4. Certificates of Analysis (COA) for <a href=\"http:\/\/sapgles.com\">Potassium Polyacrylate<\/a><\/h2>\n<p data-start=\"3159\" data-end=\"3330\">Below are representative <strong data-start=\"3184\" data-end=\"3201\">COA templates<\/strong> for three different commercial grades. Actual values may vary by batch, but the following demonstrates typical specifications.<\/p>\n<h3 data-start=\"3332\" data-end=\"3364\">4.1 Agricultural Grade COA<\/h3>\n<p data-start=\"3366\" data-end=\"3484\"><strong data-start=\"3366\" data-end=\"3378\">Product:<\/strong> Potassium Polyacrylate \u2013 Agricultural Grade<br data-start=\"3422\" data-end=\"3425\" \/><strong data-start=\"3425\" data-end=\"3439\">Batch No.:<\/strong> AG-2025-001<br data-start=\"3451\" data-end=\"3454\" \/><strong data-start=\"3454\" data-end=\"3472\">Date of Issue:<\/strong> Sept 2025<\/p>\n<div class=\"_tableContainer_1rjym_1\">\n<div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"3486\" data-end=\"4418\">\n<thead data-start=\"3486\" data-end=\"3557\">\n<tr data-start=\"3486\" data-end=\"3557\">\n<th data-start=\"3486\" data-end=\"3514\" data-col-size=\"sm\">Parameter<\/th>\n<th data-start=\"3514\" data-end=\"3540\" data-col-size=\"sm\">Specification<\/th>\n<th data-start=\"3540\" data-end=\"3557\" data-col-size=\"sm\">Result<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"3630\" data-end=\"4418\">\n<tr data-start=\"3630\" data-end=\"3701\">\n<td data-start=\"3630\" data-end=\"3658\" data-col-size=\"sm\">Appearance<\/td>\n<td data-start=\"3658\" data-end=\"3684\" data-col-size=\"sm\">White granular powder<\/td>\n<td data-start=\"3684\" data-end=\"3701\" data-col-size=\"sm\">Complies<\/td>\n<\/tr>\n<tr data-start=\"3702\" data-end=\"3773\">\n<td data-start=\"3702\" data-end=\"3730\" data-col-size=\"sm\">Odor<\/td>\n<td data-start=\"3730\" data-end=\"3756\" data-col-size=\"sm\">Odorless<\/td>\n<td data-start=\"3756\" data-end=\"3773\" data-col-size=\"sm\">Complies<\/td>\n<\/tr>\n<tr data-start=\"3774\" data-end=\"3845\">\n<td data-start=\"3774\" data-end=\"3802\" data-col-size=\"sm\">Potassium content (%)<\/td>\n<td data-start=\"3802\" data-end=\"3828\" data-col-size=\"sm\">\u2265 20<\/td>\n<td data-start=\"3828\" data-end=\"3845\" data-col-size=\"sm\">21.2<\/td>\n<\/tr>\n<tr data-start=\"3846\" data-end=\"3917\">\n<td data-start=\"3846\" data-end=\"3874\" data-col-size=\"sm\">Moisture content (%)<\/td>\n<td data-start=\"3874\" data-end=\"3900\" data-col-size=\"sm\">\u2264 8<\/td>\n<td data-start=\"3900\" data-end=\"3917\" data-col-size=\"sm\">6.5<\/td>\n<\/tr>\n<tr data-start=\"3918\" data-end=\"3989\">\n<td data-start=\"3918\" data-end=\"3946\" data-col-size=\"sm\">Residual monomer (ppm)<\/td>\n<td data-start=\"3946\" data-end=\"3972\" data-col-size=\"sm\">\u2264 500<\/td>\n<td data-start=\"3972\" data-end=\"3989\" data-col-size=\"sm\">320<\/td>\n<\/tr>\n<tr data-start=\"3990\" data-end=\"4061\">\n<td data-start=\"3990\" data-end=\"4018\" data-col-size=\"sm\">Particle size (mesh)<\/td>\n<td data-start=\"4018\" data-end=\"4044\" data-col-size=\"sm\">20\u2013100<\/td>\n<td data-start=\"4044\" data-end=\"4061\" data-col-size=\"sm\">95% within<\/td>\n<\/tr>\n<tr data-start=\"4062\" data-end=\"4131\">\n<td data-start=\"4062\" data-end=\"4100\" data-col-size=\"sm\">Absorption in distilled water (g\/g)<\/td>\n<td data-start=\"4100\" data-end=\"4114\" data-col-size=\"sm\">\u2265 400<\/td>\n<td data-start=\"4114\" data-end=\"4131\" data-col-size=\"sm\">425<\/td>\n<\/tr>\n<tr data-start=\"4132\" data-end=\"4202\">\n<td data-start=\"4132\" data-end=\"4164\" data-col-size=\"sm\">Absorption in 0.9% NaCl (g\/g)<\/td>\n<td data-start=\"4164\" data-end=\"4185\" data-col-size=\"sm\">\u2265 50<\/td>\n<td data-start=\"4185\" data-end=\"4202\" data-col-size=\"sm\">62<\/td>\n<\/tr>\n<tr data-start=\"4203\" data-end=\"4274\">\n<td data-start=\"4203\" data-end=\"4231\" data-col-size=\"sm\">pH (0.5% gel)<\/td>\n<td data-start=\"4231\" data-end=\"4257\" data-col-size=\"sm\">6.0 \u2013 7.5<\/td>\n<td data-start=\"4257\" data-end=\"4274\" data-col-size=\"sm\">6.7<\/td>\n<\/tr>\n<tr data-start=\"4275\" data-end=\"4346\">\n<td data-start=\"4275\" data-end=\"4303\" data-col-size=\"sm\">Heavy metals (Pb, Cd, Hg)<\/td>\n<td data-start=\"4303\" data-end=\"4329\" data-col-size=\"sm\">\u2264 10 ppm<\/td>\n<td data-start=\"4329\" data-end=\"4346\" data-col-size=\"sm\">&lt; 5 ppm<\/td>\n<\/tr>\n<tr data-start=\"4347\" data-end=\"4418\">\n<td data-start=\"4347\" data-end=\"4375\" data-col-size=\"sm\">Shelf life<\/td>\n<td data-start=\"4375\" data-end=\"4401\" data-col-size=\"sm\">24 months<\/td>\n<td data-start=\"4401\" data-end=\"4418\" data-col-size=\"sm\">Pass<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"4420\" data-end=\"4423\" \/>\n<h3 data-start=\"4425\" data-end=\"4455\">4.2 Industrial Grade COA<\/h3>\n<p data-start=\"4457\" data-end=\"4572\"><strong data-start=\"4457\" data-end=\"4469\">Product:<\/strong> Potassium Polyacrylate \u2013 Industrial Grade<br data-start=\"4511\" data-end=\"4514\" \/>**Batch No.: IND-2025-005<br data-start=\"4539\" data-end=\"4542\" \/><strong data-start=\"4542\" data-end=\"4560\">Date of Issue:<\/strong> Sept 2025<\/p>\n<div class=\"_tableContainer_1rjym_1\">\n<div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"4574\" data-end=\"5434\">\n<thead data-start=\"4574\" data-end=\"4645\">\n<tr data-start=\"4574\" data-end=\"4645\">\n<th data-start=\"4574\" data-end=\"4602\" data-col-size=\"sm\">Parameter<\/th>\n<th data-start=\"4602\" data-end=\"4628\" data-col-size=\"sm\">Specification<\/th>\n<th data-start=\"4628\" data-end=\"4645\" data-col-size=\"sm\">Result<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"4718\" data-end=\"5434\">\n<tr data-start=\"4718\" data-end=\"4789\">\n<td data-start=\"4718\" data-end=\"4746\" data-col-size=\"sm\">Appearance<\/td>\n<td data-start=\"4746\" data-end=\"4772\" data-col-size=\"sm\">Off-white coarse powder<\/td>\n<td data-start=\"4772\" data-end=\"4789\" data-col-size=\"sm\">Complies<\/td>\n<\/tr>\n<tr data-start=\"4790\" data-end=\"4861\">\n<td data-start=\"4790\" data-end=\"4818\" data-col-size=\"sm\">Potassium content (%)<\/td>\n<td data-start=\"4818\" data-end=\"4844\" data-col-size=\"sm\">\u2265 15<\/td>\n<td data-start=\"4844\" data-end=\"4861\" data-col-size=\"sm\">15.8<\/td>\n<\/tr>\n<tr data-start=\"4862\" data-end=\"4933\">\n<td data-start=\"4862\" data-end=\"4890\" data-col-size=\"sm\">Moisture content (%)<\/td>\n<td data-start=\"4890\" data-end=\"4916\" data-col-size=\"sm\">\u2264 10<\/td>\n<td data-start=\"4916\" data-end=\"4933\" data-col-size=\"sm\">8.1<\/td>\n<\/tr>\n<tr data-start=\"4934\" data-end=\"5005\">\n<td data-start=\"4934\" data-end=\"4962\" data-col-size=\"sm\">Residual monomer (ppm)<\/td>\n<td data-start=\"4962\" data-end=\"4988\" data-col-size=\"sm\">\u2264 1000<\/td>\n<td data-start=\"4988\" data-end=\"5005\" data-col-size=\"sm\">740<\/td>\n<\/tr>\n<tr data-start=\"5006\" data-end=\"5077\">\n<td data-start=\"5006\" data-end=\"5034\" data-col-size=\"sm\">Particle size (mesh)<\/td>\n<td data-start=\"5034\" data-end=\"5060\" data-col-size=\"sm\">10\u201380<\/td>\n<td data-start=\"5060\" data-end=\"5077\" data-col-size=\"sm\">88% within<\/td>\n<\/tr>\n<tr data-start=\"5078\" data-end=\"5147\">\n<td data-start=\"5078\" data-end=\"5116\" data-col-size=\"sm\">Absorption in distilled water (g\/g)<\/td>\n<td data-start=\"5116\" data-end=\"5130\" data-col-size=\"sm\">\u2265 250<\/td>\n<td data-start=\"5130\" data-end=\"5147\" data-col-size=\"sm\">280<\/td>\n<\/tr>\n<tr data-start=\"5148\" data-end=\"5218\">\n<td data-start=\"5148\" data-end=\"5180\" data-col-size=\"sm\">Absorption in 0.9% NaCl (g\/g)<\/td>\n<td data-start=\"5180\" data-end=\"5201\" data-col-size=\"sm\">\u2265 30<\/td>\n<td data-start=\"5201\" data-end=\"5218\" data-col-size=\"sm\">38<\/td>\n<\/tr>\n<tr data-start=\"5219\" data-end=\"5290\">\n<td data-start=\"5219\" data-end=\"5247\" data-col-size=\"sm\">pH (0.5% gel)<\/td>\n<td data-start=\"5247\" data-end=\"5273\" data-col-size=\"sm\">6.0 \u2013 8.0<\/td>\n<td data-start=\"5273\" data-end=\"5290\" data-col-size=\"sm\">7.2<\/td>\n<\/tr>\n<tr data-start=\"5291\" data-end=\"5362\">\n<td data-start=\"5291\" data-end=\"5319\" data-col-size=\"sm\">Heavy metals (Pb, Cd, Hg)<\/td>\n<td data-start=\"5319\" data-end=\"5345\" data-col-size=\"sm\">\u2264 20 ppm<\/td>\n<td data-start=\"5345\" data-end=\"5362\" data-col-size=\"sm\">&lt; 12 ppm<\/td>\n<\/tr>\n<tr data-start=\"5363\" data-end=\"5434\">\n<td data-start=\"5363\" data-end=\"5391\" data-col-size=\"sm\">Shelf life<\/td>\n<td data-start=\"5391\" data-end=\"5417\" data-col-size=\"sm\">18 months<\/td>\n<td data-start=\"5417\" data-end=\"5434\" data-col-size=\"sm\">Pass<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"5436\" data-end=\"5439\" \/>\n<h3 data-start=\"5441\" data-end=\"5484\">4.3 Premium High-Absorption Grade COA<\/h3>\n<p data-start=\"5486\" data-end=\"5616\"><strong data-start=\"5486\" data-end=\"5498\">Product:<\/strong> Potassium Polyacrylate \u2013 Premium Grade (High Absorption)<br data-start=\"5555\" data-end=\"5558\" \/>**Batch No.: PRM-2025-009<br data-start=\"5583\" data-end=\"5586\" \/><strong data-start=\"5586\" data-end=\"5604\">Date of Issue:<\/strong> Sept 2025<\/p>\n<div class=\"_tableContainer_1rjym_1\">\n<div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"5618\" data-end=\"6548\">\n<thead data-start=\"5618\" data-end=\"5689\">\n<tr data-start=\"5618\" data-end=\"5689\">\n<th data-start=\"5618\" data-end=\"5646\" data-col-size=\"sm\">Parameter<\/th>\n<th data-start=\"5646\" data-end=\"5672\" data-col-size=\"sm\">Specification<\/th>\n<th data-start=\"5672\" data-end=\"5689\" data-col-size=\"sm\">Result<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"5762\" data-end=\"6548\">\n<tr data-start=\"5762\" data-end=\"5833\">\n<td data-start=\"5762\" data-end=\"5790\" data-col-size=\"sm\">Appearance<\/td>\n<td data-start=\"5790\" data-end=\"5816\" data-col-size=\"sm\">White fine powder<\/td>\n<td data-start=\"5816\" data-end=\"5833\" data-col-size=\"sm\">Complies<\/td>\n<\/tr>\n<tr data-start=\"5834\" data-end=\"5905\">\n<td data-start=\"5834\" data-end=\"5862\" data-col-size=\"sm\">Potassium content (%)<\/td>\n<td data-start=\"5862\" data-end=\"5888\" data-col-size=\"sm\">\u2265 22<\/td>\n<td data-start=\"5888\" data-end=\"5905\" data-col-size=\"sm\">22.5<\/td>\n<\/tr>\n<tr data-start=\"5906\" data-end=\"5977\">\n<td data-start=\"5906\" data-end=\"5934\" data-col-size=\"sm\">Moisture content (%)<\/td>\n<td data-start=\"5934\" data-end=\"5960\" data-col-size=\"sm\">\u2264 5<\/td>\n<td data-start=\"5960\" data-end=\"5977\" data-col-size=\"sm\">3.8<\/td>\n<\/tr>\n<tr data-start=\"5978\" data-end=\"6049\">\n<td data-start=\"5978\" data-end=\"6006\" data-col-size=\"sm\">Residual monomer (ppm)<\/td>\n<td data-start=\"6006\" data-end=\"6032\" data-col-size=\"sm\">\u2264 300<\/td>\n<td data-start=\"6032\" data-end=\"6049\" data-col-size=\"sm\">180<\/td>\n<\/tr>\n<tr data-start=\"6050\" data-end=\"6121\">\n<td data-start=\"6050\" data-end=\"6078\" data-col-size=\"sm\">Particle size (mesh)<\/td>\n<td data-start=\"6078\" data-end=\"6104\" data-col-size=\"sm\">30\u2013120<\/td>\n<td data-start=\"6104\" data-end=\"6121\" data-col-size=\"sm\">96% within<\/td>\n<\/tr>\n<tr data-start=\"6122\" data-end=\"6191\">\n<td data-start=\"6122\" data-end=\"6160\" data-col-size=\"sm\">Absorption in distilled water (g\/g)<\/td>\n<td data-start=\"6160\" data-end=\"6174\" data-col-size=\"sm\">\u2265 600<\/td>\n<td data-start=\"6174\" data-end=\"6191\" data-col-size=\"sm\">630<\/td>\n<\/tr>\n<tr data-start=\"6192\" data-end=\"6262\">\n<td data-start=\"6192\" data-end=\"6224\" data-col-size=\"sm\">Absorption in 0.9% NaCl (g\/g)<\/td>\n<td data-start=\"6224\" data-end=\"6245\" data-col-size=\"sm\">\u2265 70<\/td>\n<td data-start=\"6245\" data-end=\"6262\" data-col-size=\"sm\">78<\/td>\n<\/tr>\n<tr data-start=\"6263\" data-end=\"6332\">\n<td data-start=\"6263\" data-end=\"6297\" data-col-size=\"sm\">Absorption under pressure (g\/g)<\/td>\n<td data-start=\"6297\" data-end=\"6315\" data-col-size=\"sm\">\u2265 40<\/td>\n<td data-start=\"6315\" data-end=\"6332\" data-col-size=\"sm\">45<\/td>\n<\/tr>\n<tr data-start=\"6333\" data-end=\"6404\">\n<td data-start=\"6333\" data-end=\"6361\" data-col-size=\"sm\">pH (0.5% gel)<\/td>\n<td data-start=\"6361\" data-end=\"6387\" data-col-size=\"sm\">6.0 \u2013 7.0<\/td>\n<td data-start=\"6387\" data-end=\"6404\" data-col-size=\"sm\">6.5<\/td>\n<\/tr>\n<tr data-start=\"6405\" data-end=\"6476\">\n<td data-start=\"6405\" data-end=\"6433\" data-col-size=\"sm\">Heavy metals (Pb, Cd, Hg)<\/td>\n<td data-start=\"6433\" data-end=\"6459\" data-col-size=\"sm\">\u2264 5 ppm<\/td>\n<td data-start=\"6459\" data-end=\"6476\" data-col-size=\"sm\">&lt; 3 ppm<\/td>\n<\/tr>\n<tr data-start=\"6477\" data-end=\"6548\">\n<td data-start=\"6477\" data-end=\"6505\" data-col-size=\"sm\">Shelf life<\/td>\n<td data-start=\"6505\" data-end=\"6531\" data-col-size=\"sm\">36 months<\/td>\n<td data-start=\"6531\" data-end=\"6548\" data-col-size=\"sm\">Pass<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"6550\" data-end=\"6553\" \/>\n<h2 data-start=\"6555\" data-end=\"6592\">5. Maximum Absorption Capacities<\/h2>\n<p data-start=\"6594\" data-end=\"6783\">Potassium polyacrylate\u2019s performance is heavily dependent on environmental conditions, water quality, and ionic strength. The following summarizes absorption capacities across conditions.<\/p>\n<ol data-start=\"6785\" data-end=\"7470\">\n<li data-start=\"6785\" data-end=\"6922\">\n<p data-start=\"6788\" data-end=\"6812\"><strong data-start=\"6788\" data-end=\"6810\">In Distilled Water<\/strong><\/p>\n<ul data-start=\"6816\" data-end=\"6922\">\n<li data-start=\"6816\" data-end=\"6851\">\n<p data-start=\"6818\" data-end=\"6851\">Agricultural Grade: 400\u2013450 g\/g<\/p>\n<\/li>\n<li data-start=\"6855\" data-end=\"6888\">\n<p data-start=\"6857\" data-end=\"6888\">Industrial Grade: 250\u2013300 g\/g<\/p>\n<\/li>\n<li data-start=\"6892\" data-end=\"6922\">\n<p data-start=\"6894\" data-end=\"6922\">Premium Grade: 600\u2013650 g\/g<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"6924\" data-end=\"7067\">\n<p data-start=\"6927\" data-end=\"6963\"><strong data-start=\"6927\" data-end=\"6961\">In Saline Solution (0.9% NaCl)<\/strong><\/p>\n<ul data-start=\"6967\" data-end=\"7067\">\n<li data-start=\"6967\" data-end=\"7000\">\n<p data-start=\"6969\" data-end=\"7000\">Agricultural Grade: 60\u201370 g\/g<\/p>\n<\/li>\n<li data-start=\"7004\" data-end=\"7035\">\n<p data-start=\"7006\" data-end=\"7035\">Industrial Grade: 30\u201340 g\/g<\/p>\n<\/li>\n<li data-start=\"7039\" data-end=\"7067\">\n<p data-start=\"7041\" data-end=\"7067\">Premium Grade: 70\u201380 g\/g<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"7069\" data-end=\"7250\">\n<p data-start=\"7072\" data-end=\"7097\"><strong data-start=\"7072\" data-end=\"7095\">Under Soil Pressure<\/strong><\/p>\n<ul data-start=\"7101\" data-end=\"7250\">\n<li data-start=\"7101\" data-end=\"7154\">\n<p data-start=\"7103\" data-end=\"7154\">Absorption capacity decreases due to compression.<\/p>\n<\/li>\n<li data-start=\"7158\" data-end=\"7250\">\n<p data-start=\"7160\" data-end=\"7250\">Premium grade retains <strong data-start=\"7182\" data-end=\"7195\">40\u201350 g\/g<\/strong> under pressure, suitable for root zone applications.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"7252\" data-end=\"7470\">\n<p data-start=\"7255\" data-end=\"7276\"><strong data-start=\"7255\" data-end=\"7274\">Cycle Stability<\/strong><\/p>\n<ul data-start=\"7280\" data-end=\"7470\">\n<li data-start=\"7280\" data-end=\"7351\">\n<p data-start=\"7282\" data-end=\"7351\">Potassium polyacrylate can undergo multiple swelling\/drying cycles.<\/p>\n<\/li>\n<li data-start=\"7355\" data-end=\"7470\">\n<p data-start=\"7357\" data-end=\"7407\">After 5 cycles, average absorption retention is:<\/p>\n<ul data-start=\"7413\" data-end=\"7470\">\n<li data-start=\"7413\" data-end=\"7441\">\n<p data-start=\"7415\" data-end=\"7441\">Agricultural Grade: ~70%<\/p>\n<\/li>\n<li data-start=\"7447\" data-end=\"7470\">\n<p data-start=\"7449\" data-end=\"7470\">Premium Grade: ~85%<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<hr data-start=\"7472\" data-end=\"7475\" \/>\n<h2 data-start=\"7477\" data-end=\"7524\">6. Comparative Advantage Over Alternatives<\/h2>\n<ul data-start=\"7526\" data-end=\"7852\">\n<li data-start=\"7526\" data-end=\"7643\">\n<p data-start=\"7528\" data-end=\"7643\"><strong data-start=\"7528\" data-end=\"7558\">Versus Sodium Polyacrylate<\/strong>: Potassium is plant-friendly, improves soil fertility, and avoids sodium toxicity.<\/p>\n<\/li>\n<li data-start=\"7644\" data-end=\"7745\">\n<p data-start=\"7646\" data-end=\"7745\"><strong data-start=\"7646\" data-end=\"7699\">Versus Natural Polymers (e.g., starch, cellulose)<\/strong>: Higher durability and absorption capacity.<\/p>\n<\/li>\n<li data-start=\"7746\" data-end=\"7852\">\n<p data-start=\"7748\" data-end=\"7852\"><strong data-start=\"7748\" data-end=\"7805\">Versus Traditional Soil Amendments (e.g., clay, peat)<\/strong>: Far superior in water retention efficiency.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"7854\" data-end=\"7857\" \/>\n<h2 data-start=\"7859\" data-end=\"7899\">7. Regulatory and Quality Assurance<\/h2>\n<ol data-start=\"7901\" data-end=\"8156\">\n<li data-start=\"7901\" data-end=\"7979\">\n<p data-start=\"7904\" data-end=\"7979\"><strong data-start=\"7904\" data-end=\"7938\">Compliance with REACH and RoHS<\/strong> for safe use in agricultural settings.<\/p>\n<\/li>\n<li data-start=\"7980\" data-end=\"8054\">\n<p data-start=\"7983\" data-end=\"8054\"><strong data-start=\"7983\" data-end=\"8016\">ISO 9001 Certified production<\/strong> ensures batch-to-batch consistency.<\/p>\n<\/li>\n<li data-start=\"8055\" data-end=\"8156\">\n<p data-start=\"8058\" data-end=\"8156\"><strong data-start=\"8058\" data-end=\"8082\">Environmental Safety<\/strong>: Biodegrades over years, leaving potassium ions as beneficial residues.<\/p>\n<\/li>\n<\/ol>\n<hr data-start=\"8158\" data-end=\"8161\" \/>\n<h2 data-start=\"8163\" data-end=\"8237\">8. Practical Recommendations for Fertilizer and Pesticide Integration<\/h2>\n<ol data-start=\"8239\" data-end=\"8625\">\n<li data-start=\"8239\" data-end=\"8303\">\n<p data-start=\"8242\" data-end=\"8303\"><strong data-start=\"8242\" data-end=\"8264\">Application Dosage<\/strong>: 20\u201340 kg\/ha depending on soil type.<\/p>\n<\/li>\n<li data-start=\"8304\" data-end=\"8393\">\n<p data-start=\"8307\" data-end=\"8393\"><strong data-start=\"8307\" data-end=\"8334\">Mixing with Fertilizers<\/strong>: Blend with NPK formulations to extend nutrient release.<\/p>\n<\/li>\n<li data-start=\"8394\" data-end=\"8503\">\n<p data-start=\"8397\" data-end=\"8503\"><strong data-start=\"8397\" data-end=\"8419\">Pesticide Delivery<\/strong>: Incorporate into formulations to reduce evaporation and increase soil residence.<\/p>\n<\/li>\n<li data-start=\"8504\" data-end=\"8625\">\n<p data-start=\"8507\" data-end=\"8625\"><strong data-start=\"8507\" data-end=\"8523\">Target Crops<\/strong>: Particularly useful for dryland crops such as maize, sorghum, cotton, vegetables, and fruit trees.<\/p>\n<\/li>\n<\/ol>\n<hr data-start=\"8627\" data-end=\"8630\" \/>\n<h2 data-start=\"8632\" data-end=\"8650\">9. Conclusion<\/h2>\n<p data-start=\"8652\" data-end=\"9126\">Potassium polyacrylate represents a powerful tool for the fertilizer and pesticide industry, enabling better water management, improved nutrient uptake, and reduced chemical losses. The COAs provided for different grades highlight product reliability and adaptability across diverse agricultural and industrial needs. The maximum absorption capacity data demonstrates clear advantages for premium-grade materials where superior water retention and durability are required.<\/p>\n<p data-start=\"9128\" data-end=\"9386\">For companies involved in fertilizer and pesticide production, the integration of potassium polyacrylate ensures not only better crop yield and resource efficiency but also supports the broader movement toward sustainable and climate-resilient agriculture.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Focus on Certificates of Analysis (COA) and Maximum Absorption Capacity 1. Introduction Potassium polyacrylate (PAA-K), commonly referred to as a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6866,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[44,637,522,524,549],"class_list":["post-6865","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-potassium-polyacrylate","tag-potassium-polyacrylate-compony","tag-potassium-polyacrylate-factory","tag-potassium-polyacrylate-supplier","tag-potassium-polyacrylate-wholesale"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/saphydrogels.com\/en_nz\/wp-json\/wp\/v2\/posts\/6865","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/saphydrogels.com\/en_nz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/saphydrogels.com\/en_nz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/saphydrogels.com\/en_nz\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/saphydrogels.com\/en_nz\/wp-json\/wp\/v2\/comments?post=6865"}],"version-history":[{"count":1,"href":"https:\/\/saphydrogels.com\/en_nz\/wp-json\/wp\/v2\/posts\/6865\/revisions"}],"predecessor-version":[{"id":6867,"href":"https:\/\/saphydrogels.com\/en_nz\/wp-json\/wp\/v2\/posts\/6865\/revisions\/6867"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/saphydrogels.com\/en_nz\/wp-json\/wp\/v2\/media\/6866"}],"wp:attachment":[{"href":"https:\/\/saphydrogels.com\/en_nz\/wp-json\/wp\/v2\/media?parent=6865"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/saphydrogels.com\/en_nz\/wp-json\/wp\/v2\/categories?post=6865"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/saphydrogels.com\/en_nz\/wp-json\/wp\/v2\/tags?post=6865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}