Agent Name

Ammonium thioglycolate

CAS Number

5421-46-5

Formula

C2-H4-O2-S.H3-N

Major Category

Other Classes

Synonyms

Ammonium mercaptoacetate; Ammonium thioglycolate; Ammonium thioglycollate; Thiofaco A-50; Thioglycolic acid ammonium salt; Thioglycollic acid, ammonium salt; [ChemIDplus]

Category

Thioglycolates

Description

Colorless to pale pink liquid; [HSDB]

Sources/Uses

"Solutions of various strengths are used for hair waving and for hair removal. May be used in permanent hair colors, levels up to 0.25%, as a stabilizer against oxidation." [HSDB]

Comments

Ammonium thioglycolate, used for alkaline hair permanents, is difficult to patch test because of its irritating effects. It is a known cause of irritant contact dermatitis in hairdressers and their clients. [Marks, p. 178] Causes contact urticaria; [Kanerva, p. 219]

Exposure Assessment
Vapor Pressure

8.5E-6 mm Hg

Adverse Effects
Skin Sensitizer

Yes

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

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