Formula: CH₂S₂O₆Na₂

CAS No. 5799-70-2

Appearance: White powder

Purity: 98.5% min.

Moisture: 1.5% max.

CH₄SO₃^-: 5ppm max.

Sulfate (SO₄): 5ppm max.

Chloride: 5ppm max.

K: 0.01% max.

Ca: 0.01% max.

Ba: 0.01% max.