CAS149-44-0 6035-47-8 (dihydrate)
FormulaHOCH2SOONa or HOCH2SOONa 2H2O
SynonymSodium formaldehyde sulfoxylate, Formaldehyde hydrosulfite, Formaldehyde sodium bisulfite adduct, Formaldehyde sodium sulfoxylate, Hydroxymethanesulfinic acid monosodium salt, Hydroxymethanesulfinic acid sodium salt Methanesulfinic acid, hydroxy-, monosodium salt, Monosodium hydroxymethane sulfinate, SFS, Sodium formaldehyde hydrosulfite, Sodium hydroxymethane sulfinate Sodium methanalsulfoxylate, Sodium sulfoxylate formaldehyde
SensoricSmall lumps or fine white powder
Assay %≥ 98%
pH of 10% water solution9.5 - 10.5
Alkalinity (0.10N H2so4/2g)(as Na2CO3 ) : 2, --/3,5%
Iron≤ 1 ppm
Water Insolubles, wt%None
Grain sizeLumps 5 -10 mm