Formula: Ca₃(C₆H₅O₇)₂·4H₂O CAS: 813-94-5 EC No.: 212-391-7 M (Molar Mass): 570.50 g/mol D (Density): Not applicable mp (Melting Point): 120°C (loses water) bp (Boiling Point): Not applicable

Assay (Titration): ≥ 97.0 % Appearance: White fine powder. Identification (IR): Passes test. Chloride (Cl): ≤ 0.05 % Sulfate (SO₄): ≤ 0.1 % Heavy Metals (as Pb): ≤ 20 ppm Iron (Fe): ≤ 0.01 % Arsenic (As): ≤ 3 ppm Loss on Drying: 12.0-14.0 % pH (5% slurry): 5.0-7.0