humic acid series of fertilizers
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Potassium humate is a kind of high polymer heterogeneous aromatic sylvine with black solid crystal appearance. It is alkaline, soluble in water and contains hydroxyl, carboxyl and other active groups.
Solubility in water (dry basis) : >=98%
Humic acid (dry basis) : >=80%
Soluble Potassium (k2o dry basis) : >=12%
Size rate ( 0.2-1mm) : >=95%