Sodium persulfate

Agent Name
Sodium persulfate
CAS Number
7775-27-1
Formula
O8-S2.2Na
Major Category
Other Classes
Sodium persulfate formula graphical representation
Synonyms
Peroxydisulfuric acid, disodium salt; Sodium peroxydisulfate; Persulfate de sodium [French]; Sodium peroxydisulfate; Disodium peroxodisulphate; [ChemIDplus] UN1505
Category
Inorganic Oxidizing Agents
Description
White, solid; [Merck Index] Hygroscopic; [CHEMINFO] White odorless crystalline solid; [MSDSonline]
Sources/Uses
Used as a bleaching and oxidizing agent and polymerization catalyst; [Merck Index] Used in battery depolarizers; [Hawley] Used extensively for hair lightening and decolorizing; [eChemPortal: NICNAS]
Comments
Danger of sensitization of airways and skin; [MAK] Frequent skin rashes are reported in workers exposed to persulfates (S2O8). Rats inhaling 4-20 mg/m3 of ammonium persulfate 23.5 hours/day for 7 days show signs of lung inflammation and loss of body weight. The TLV is proposed to reduce irritation of skin, throat, and respiratory tract. [ACGIH] A skin, eye, and respiratory tract irritant; May cause skin sensitization, dermatitis, and asthma after prolonged contact; [ICSC] An irritant; May cause skin and respiratory sensitization after prolonged contact; [MSDSonline] See "Ammonium persulfate" and "Potassium persulfate."
Biomedical References

Exposure Assessment

Skin Designation (ACGIH)
Insufficient data
TLV (ACGIH)
0.1 mg/m3, as S2O8
Lethal Concentration
LC50 (rat) > 5,100 mg/m3/4h

Adverse Effects

Skin Sensitizer
Yes
Asthma
Yes

Diseases, Processes, and Activities Linked to This Agent

Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: