Hydrate of sodium formaldehyde sulfoxylate

Hydrated sodium formaldehyde sulfoxylate, also known as sodium bisulfite hydroxymethyl ether (Tai Bai Ke); chemical formula: NaHSO4·CH2O·2H2O or NaHSO2·CH2O·2H2O. Molecular weight: 154.12. Appearance: Semi-transparent white crystals. Melting point 64°C. It exhibits strong reducing properties at high temperatures, capable of causing the colors applied to materials to fade away; hence it is known as sodium hypochlorite. It is soluble in water and slightly soluble in alcohol. It decomposes upon contact with dilute acids, and its aqueous solution begins to decompose at temperatures above 60°C. Application areas: It is mainly used in the printing and dyeing industry as a decolorizing agent, a reducing agent, a raw material for producing indigo dyes, and in the dyeing of phthalein blue. It is used as a bleaching agent in the synthetic rubber industry and the sugar and food industry. I hope the original poster will pay attention to the way they post their questions. After all, such simple questions can be found easily by just searching on Baidu – why doesn’t the poster give it a try? This post was last edited by alex_zxorc on 2008-2-27 16:16.]