ammonium persulphate, also known as ammonium dissulphate, is an ammonium salt, chemical formula(nh4)2s2o8, molecular weight 228.201. it is highly oxidizing and corrosive. completely dry ammonium persulfate does not decompose easily, while moist ones decompose oxygen and ozone.
it is soluble in water, and aqueous solutions decompose at room temperature. contact with metal also breaks down. ammonium persulfate is widely used in the battery industry as an oxidant and bleaching agent. it is also used as polymerization initiator, fiber industry desizing agent; and can be used as metal and semiconductor material surface treatment, printing circuit etching agent; it is also widely used in oil fracturing, flour and starch processing industry, oil industry, and in the photographic industry to remove sea waves.
product name: ammonium persulphate
alias: ammonium peroxydisulfate; ammonium persulfate ammonium peroxodisulfate; ammonium peroxodisulfate; diammonium peroxodisulphate; ammonium persulphate; ammonium persulfate, molecular biology grade ammonium peroxodisulfate, molecular biology grade; ammonium peroxydisulphate; ammonium peroxodisulphate; diammonium [(sulfonatoperoxy)sulfonyl]oxidanide; [dioxybis(sulfonyloxy)]diammonium; diammonium oxidooxysulfonyl sulfate; diammonium dioxidan-2-idesulfonate
chemical formula: (nh4)2s2o8
molecular weight: 228.201
melting point: 120 °c
physical and chemical properties
main ingredients: industrial grade content ≥95%。
appearance and appearance: colorless monoclinic crystal, sometimes slightly greenish, deliquescent.
melting point(℃): 120
boiling point(℃): decomposition
relative density (water=1): 1.982
relative vapor pressure (air=1): 7.9
solubility: easily soluble in water
used as oxidant, bleach, disinfectant, photographic material, analytical reagent, etc.
determination and determination of manganese as an oxidant. bleach. photographic reducing agents and blockers. battery depolarizer. for the preparation of soluble starch.
used as an initiator for the emulsion polymerization of ethylene acetate, acrylate and other alkene monomers, the emulsion is cheap and has good water resistance. also used as a curing agent of urea-formaldehyde resin, curing speed is the fastest. it can also be used as an oxidant for starch adhesives. it can react with protein in starch to improve adhesion. the reference dosage is 0.2% ~ 0.4% of starch. also used as copper surface treating agent.
the chemical industry is used as the raw material for the manufacture of supersulfate and hydrogen peroxide, as the copolymerizer for the polymerization of organic polymers, and as the initiator for the polymerization of vinyl chloride monomers. oil, soap industry used as bleaching agent. it is also used for corrosion of metal plate and oil recovery in petroleum industry. food grade used as wheat modifier, beer yeast mildew inhibitor.