LABOGENS SODIUM FORMALDEHYUDE SULFOXYLATE (DIHYDRATE) 500GM

Assay (iodometric, on

anhydrous substance as SO2))45.0-55.0%

Clarity and color of solutionclear & colorless

Alkalinity passes test

pH of 2% solution 9.5-10.5%

Sodium sulphite(Na2SO3) max 5.0%

Iron (Fe) max 0.001%

Sulphide passes tes

Loss on drying (105oC) max 27.0%