Identity: passes test

Assay (complexometric): ≥ 97 %

Appearance of solution: passes test

Substances soluble in water: ≤ 0.4 %

Substances insoluble in hydrochloric acid: ≤ 0.02 %

Substances precipitated by ammonia: ≤ 0.02 %

Carbonate (as CO₂): ≤ 1.5 %

Chloride (Cl): ≤ 0.01 %

Nitrate (NO₃): ≤ 0.005 %

Sulfate (SO₄): ≤ 0.001 %

Sulfate and sulphite (as SO₄): ≤ 0.02 %

Total nitrogen (N): ≤ 0.002 %

Heavy metals (as Pb): ≤ 0.003 %

As (Arsenic): ≤ 0.0001 %

Ca (Calcium): ≤ 0.05 %

Cu (Copper): ≤ 0.001 %

Fe (Iron): ≤ 0.005 %

K (Potassium): ≤ 0.005 %

Mn (Manganese): ≤ 0.0005 %

Na (Sodium): ≤ 0.25 %

Pb (Lead): ≤ 0.001 %

Zn (Zinc): ≤ 0.0005 %

Barium and Strontium (as Ba): ≤ 0.005 %

Loss on ignition (1000 °C): ≤ 2.0 %

Conforms to ACS