Ammonium thioglycolate solution , Reagent level, 70%solution , 5421-46-5

Synonym(s):
Thioglycolic acid ammonium salt

CAS NO.：5421-46-5

Empirical Formula: C2H7NO2S

Molecular Weight: 109.15

MDL number: MFCD00137451

EINECS: 226-540-9

PRODUCT Properties

• Melting point: 139-139.5 °C
• Boiling point: 115℃[at 101 325 Pa]
• Density: 1.22
• vapor pressure: 0.001Pa at 25℃
• form: Solution
• Specific Gravity: 1.245 (25℃)
• color: Clear colorless
• Odor: strong skunk-like odor
• Water Solubility: Miscible
• InChI: InChI=1S/C2H4O2S.H3N/c3-2(4)1-5;/h5H,1H2,(H,3,4);1H3
• InChIKey: JYAVWXRMOOCSOD-UHFFFAOYSA-N
• SMILES: C([O-])(=O)CS.[NH4+]
• LogP: -2.99 at 20℃
• CAS DataBase Reference: 5421-46-5(CAS DataBase Reference)
• EPA Substance Registry System: Acetic acid, 2-mercapto-, ammonium salt (1:1) (5421-46-5)

Description and Uses

Ammonium thioglycolate, also known as perm salt, is the chemical compound with the formula HSCH₂CO₂NH₄. Being the salt of a weak acid and weak base, ammonium thioglycolic acid exists in solution as an equilibrium mixture of the salt itself as well as the free carboxylic acid thioglycolic acid (HSCH₂CO₂H) and ammonia : HSCH₂COO^- + NH₄⁺ ? HSCH₂COOH + NH₃.

acts as a reducing agent in permanent-waving formulations for hair treatment and in shrink-resistant treatment of wool.

Safety

• Symbol(GHS): GHS05,GHS06
• Signal word: Danger
• Hazard statements: H290-H301-H317
• Precautionary statements: P280-P301+P310+P330-P302+P352
• Hazard Codes: T
• Risk Statements: 25-43
• Safety Statements: 36/37-45-37-24
• RIDADR: 2810
• WGK Germany: 1
• RTECS: AI7525000
• HazardClass: 6.1(b)
• PackingGroup: III
• HS Code: 29309090
• Hazardous Substances Data: 5421-46-5(Hazardous Substances Data)
• Toxicity: LD50 ipr-rat: 165 mg/kg JPETAB 97,349,49