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SODIUM FORMALDEHYDE SULFOXYLATE HYDRATE Extra Pure

Product Code: 05875


Specifications

Appearance White big flakes
Assay as SO2 (Iodometric; on dried basis) 45 - 55%
Clarity and color of solution Clear and colorless
Alkalinity Passes test
pH (2% solution) 9.5 - 10.5
Sodium sulphite (Na2SO3) Max 5%
Iron (Fe) Max 0.001%
Sulphide (S) Passes test
Loss on drying (at 105°C) Max 27%

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