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T3758

Thioglycolic acid

Name: Thioglycolic acid
Brand: SIAL

98%, liquid

Synonym(s):

Mercaptoacetic acid

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About This Item

Linear Formula:

HSCH₂COOH

CAS Number:

68-11-1

Molecular Weight:

92.12

NACRES:

NA.21

PubChem Substance ID:

24900165

UNSPSC Code:

12352100

EC Number:

200-677-4

MDL number:

MFCD00004876

Beilstein/REAXYS Number:

506166

Assay:

98%

Form:

liquid

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Properties

Product Name

Thioglycolic acid, 98%

vapor density

3.2 (vs air)

Quality Level

200

vapor pressure

0.4 mmHg ( 25 °C)

assay

98%

form

liquid

autoignition temp.

662 °F

color

clear colorless

refractive index

n20/D 1.505 (lit.)

pH

(1,5 at 10 g/l at 20 °C)

bp

96 °C/5 mmHg (lit.)

mp

−16 °C (lit.)

solubility

water: soluble 1.000 g/L at 20 °C

density

1.326 g/mL at 20 °C (lit.)

functional group

carboxylic acid, thiol

shipped in

wet ice

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

General description

Thioglycolic acid is a mercaptocarboxylic acid that serves as a stabilizer, reducing agent, and ligand.

Application

Thioglycolic acid may be used as a sulfur source for the synthesis of metal sulfide nanostructures via hydrothermal process.

Disclaimer

At room temperature, concentrations over approximately 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.

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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

Regulatory Information

危险化学品

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Controllable synthesis of wurtzite ZnS nanorods through simple hydrothermal method in the presence of thioglycolic acid.

Salavati-Niasari M, et al.

J. Alloy Compounds, 475(1-2), 782-788 (2009)

Shape selective hydrothermal synthesis of tin sulfide nanoflowers based on nanosheets in the presence of thioglycolic acid.

Salavati-Niasari M & Davar F.

J. Alloy Compounds, 492(1-2), 570-575 (2010)

Controllable synthesis of nanocrystalline CdS with different morphologies by hydrothermal process in the presence of thioglycolic acid.