Potassium persulfate - Wikipedia, the free encyclopedia

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# Potassium persulfate

### From Wikipedia, the free encyclopedia

Potassium persulfate
Image:Potassium persulfate.jpg
General
Other names | peroxydisulfuric acid potassium peroxydisulfate
Molecular formula | K2S2O8
Molar mass | 270.32 g/mol
Appearance | white powder
CAS number | [7727-21-1]
Properties
Density and phase | 2.48 g/cm3, solid
Solubility in water | 4.7g/100g water
Melting point | 100°C (decomposes)
Boiling point | ?
Vapor density | 9.30
Hazards
EU classification | not listed
NFPA 704 | 0 1 0 OX
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Potassium persulfate (K2 S2 O8) is a chemical compound. It is a food additive and it is used in organic chemistry as an oxidizing agent for instance in the Elbs persulfate oxidation

Conditions/substances to avoid are: heat, flames, ignition sources, powdered metals, phosphorus, hydrides, organic matter, halogens, acids and alkalis.

## [edit] External links

- Link page to external chemical sources.

v • d • e E numbers
Colours (E100-199) • Preservatives (E200-299) • Antioxidants & Acidity regulators (E300-399) • Thickeners, stabilisers & emulsifiers (E400-499) • pH regulators & anti-caking agents (E500-599) • Flavour enhancers (E600-699) • Miscellaneous (E900-999) • Additional chemicals (E1100-1599)

Waxes (E900-909) • Synthetic glazes (E910-919) • Improving agents (E920-929) • Packaging gases (E930-949) • Sweeteners (E950-969) • Foaming agents (E990-999)

L-cysteine (E920) • L-cystine (E921) • Potassium persulfate (E922) • Ammonium persulfate (E923) • Potassium bromate (E924) • Chlorine (E925) • Chlorine dioxide (E926) • Azodicarbonamide (E927) • Carbamide (E927b) • Benzoyl peroxide (E928) • Calcium peroxide (E930)

Retrieved from "http://en.wikipedia.org/wiki/Potassium_persulfate"

Categories: Persulfates | Potassium compounds

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