有二氧化硫气味。对湿敏感。有酸性反应。与酸接触有二氧化硫逸出。在空气中逐渐氧化成硫酸盐,在湿空气中氧化更快。如研磨成粉灼热时能燃烧。易溶于水,不溶于醇。190℃时分解。有刺激性。 Potassium disulfite (Potassium metabisulfite, PMB) is an inorganic salt with antimicrobial properties. It is a sulfiting agent that prevents browning of foods. Its genotoxic and cytotoxic effect has been assessed. PMB undergoes hydrolysis to form potassium bisulfite.Potassium disulfite has been used in a protocol for the modification of the polydimethylsiloxane (PDMS) polymer surfaces. It may be used in the following processes: 还原剂,显影剂,细菌抑制剂,抗氧剂,制备亚硫酸。 · Chemical etching of poly(vinylidene fluoride) in β-phase (β-PVDF) irradiated films. · Decolorization during the synthesis of 2-iodopyrimidine derivatives. · Palladium-catalyzed aminosulfonylation of aryl halides.
Potassium disulfite (Potassium metabisulfite, PMB) is an inorganic salt with antimicrobial properties. It is a sulfiting agent that prevents browning of foods. Its genotoxic and cytotoxic effect has been assessed. PMB undergoes hydrolysis to form potassium bisulfite.
Potassium disulfite has been used in a protocol for the modification of the polydimethylsiloxane (PDMS) polymer surfaces.
It may be used in the following processes:
还原剂,显影剂,细菌抑制剂,抗氧剂,制备亚硫酸。
· Chemical etching of poly(vinylidene fluoride) in β-phase (β-PVDF) irradiated films.
· Decolorization during the synthesis of 2-iodopyrimidine derivatives.
· Palladium-catalyzed aminosulfonylation of aryl halides.