Appearance Fine Powder Colour Black Powder Size 80 Mesh Chemical Properties Solubility (dry basis) 100 % Humic Acid (dry basis) 80 % Min. Fulvic Acid (dry basis) 15 % Min. Moisture 15 % pH of 2% Solution 8.5-10 Nitrogen 0.3-1.5 % Potassium as K2O (dry basis) 10-15 % w/w Max Pb (ppm) 20 ppm Max Hg (ppm) 0.2 ppm Max.Cd (ppm)01 ppm Max.
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