Description
Phosphotungstic Acid, n-Hydrate, Crystal AR. Solubility: Passes Test. Ammonium (NH4): max. 0. 004%. Chloride (Cl): max. 0. 03%. Heavy Metals and Iron: Passes Test. Insoluble Matter: max. 0. 02%. Nitrate (NO3): max. 0. 004%. Sulfate (SO4): max. 0. 02%.