Humic acid powder is made from the higher molecular
weight of weathering coal,which can soluble in Alkaline
solution ,not soluble water and acidic solution. outside form:
powder and granule
Main specification:
Appearance;black powder/granule
Water solution 50% NILE.
ORGANIC(on a dry basis) ≥80.0% ≥80.0%
HUMIC ACID(on a dry basis) ≥50.0% ≥50.0%
C.E.C ≥300meq/100g ≥250meq/100g
pH 4.0-6.0 4.0-6.0
granule size: 1-5mm 60mesh