Formula: NaH₂PO₄ • 2H₂O CAS: 13472-35-0 EC No.: 231-449-2 M (Molar Mass): 156.01 g/mol

Assay (Titration): 99.0 - 101.0 % Appearance: White crystalline powder. pH (5% solution): 4.2 - 4.5 Loss on Drying (105°C): 21.5 - 23.5 % Insoluble Matter: ≤ 0.005 % Chloride (Cl): ≤ 0.002 % Nitrate (NO₃): ≤ 0.001 % Sulfate (SO₄): ≤ 0.005 % Ammonium (NH₄): ≤ 0.002 % Heavy Metals (as Pb): ≤ 0.0005 % Iron (Fe): ≤ 0.0005 % Potassium (K): ≤ 0.01 %