T6750

Thioglycolic acid solution

~70 % (w/w) in H₂O

• Synonym(s): Mercaptoacetic acid
• Linear Formula: HSCH₂COOH
• CAS Number: 68-11-1
• Molecular Weight: 92.12
• UNSPSC Code: 12352201
• NACRES: NA.21
• PubChem Substance ID: 24900401
• EC Number: 200-677-4
• Beilstein/REAXYS Number: 506166
• MDL number: MFCD00004876

Properties

• Quality Segment: 200
• concentration: ~70 % (w/w) in H₂O
• density: 1.25 g/mL at 25 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: OC(=O)CS
• InChI: 1S/C2H4O2S/c3-2(4)1-5/h5H,1H2,(H,3,4)
• InChI key: CWERGRDVMFNCDR-UHFFFAOYSA-N

Description

Disclaimer

At room temperature, concentrations over about 70% in water tend to form 1-2% thioglycolides per month which hydrolyze to the original free compound when made acid or alkaline. The 70% solution oxidizes in air but is stable at room temperature when tightly closed. Thioglycolate salts may also lose purity on storage. The exclusion of air does not materially improve stability.

Safety Information

• pictograms: GHS06,GHS05
• signalword: Danger
• hcodes: H301 + H311 + H331,H314,H317,H412
• pcodes: P261 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1B
• Storage Class: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• wgk: WGK 3
• flash_point_f: 266.0 °F - closed cup
• flash_point_c: 130 °C - closed cup
• ppe: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter