Humic Acid from China, with very good quality! CAS No.1415-93-6Physicochemical PropertiesIt contains ... hydroxyl, carboxyl, phenolic hydroxyl and other active groups with black or brown appearance,can be made into powder, granule ... .0Moisture %≤20.0Ph3-5Packaging1) Paper bags with PE liner, 25kg net;2) Plastic woven bags with PE liner, 25kg net or 50kg net;Storage ...