Specifications

Item and index^$Content (counting C11H8O2 NaHSO3 3H2O), % ≥96.0

Sodium Bisulfite (NaHO3) content, % 32.0-34.0

Sulphonic acid menadione No deposition

Moisture, % 16.0-18.0

Heavy metal (counting Pb), % ≤0.002

Arsenic salt (As), % ≤0.0005

Menadione, % ≥50

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Features

Aspects and characters^$White crystal powder, no smell, water soluble, not dissolved in ethanol, hardly dissolved in aether and benzene, stable in normal temperature, easily decomposed under light, stimulating skin and respiratory tract.^#