Formula: NaH₂PO₄ • 2H₂O CAS: 13472-35-0 EC No.: 231-449-2 M (Molar Mass): 156.01 g/mol D (Density): 1.91 g/cm³ mp (Melting Point): ~60°C (loses water)

Assay (Titration): 98.0 - 102.0 % Appearance: White crystalline powder or granules. pH (1% solution): 4.2 - 4.5 Loss on Drying (105°C): 20.0 - 24.0 % (theoretical ~23.1%) Insoluble Matter: ≤ 0.01 % Chloride (Cl): ≤ 0.005 % Sulfate (SO₄): ≤ 0.01 % Heavy Metals (as Pb): ≤ 0.001 % Iron (Fe): ≤ 0.001 %