It is a food additive and it is used in organic chemistry as an oxidizing agent for instance in the Elbs persulphate oxidation, and in hair dye substances as whitening agent with hydrogen peroxide. It takes also an important role as initiator for emulsion polymerization.
POTASSIUM PERSULFATE
[EP GRADE]
TEST
RESULTS
PRESCRIBED
Description
Passes
White crystalline powder
Solution (10%)
Passes
Almost clear
Assay
98.04%
98.0% Min
MAXIMUM LIMITS OF IMPURITIES
Chloride (Cl)
0.0042
0.005% w/w
Iron (Fe)
0.0034
0.005% w/w
pH (3% solution)
6.30
4.0 – 7.0