Appearance2-4mm flakes
Water Solubility (multiple grades)HUWIN 100: 100%, HUWIN 99: > 99%, HUWIN 98: > 98%, HUWIN 95: > 95%
Humic Acid (multiple grades)HUWIN 100: > 50%, HUWIN 99: > 65%, HUWIN 98: > 60%, HUWIN 95: > 50%
Fulvic Acid (multiple grades)HUWIN 100: > 25%, HUWIN 99: > 5%, HUWIN 98: > 5%, HUWIN 95: > 5%
Potassium Oxide (K₂O)> 10%
pH9-10