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Merck

T3758

Thioglycolic acid

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

Key Documents

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Product Name

Thioglycolic acid, 98%

InChI

1S/C2H4O2S/c3-2(4)1-5/h5H,1H2,(H,3,4)

InChI key

CWERGRDVMFNCDR-UHFFFAOYSA-N

SMILES string

OC(=O)CS

vapor density

3.2 (vs air)

vapor pressure

0.4 mmHg ( 25 °C)

assay

98%

form

liquid

autoignition temp.

662 °F

color

clear colorless

Quality Level

200

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

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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.

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

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 Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Deleterious substance

pdsc

Group 4: Flammable liquids + Type 3 petroleums + Hazardous rank III + Water soluble liquid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

T3758-5ML: + T3758-50ML: + T3758-BULK: + T3758-100ML:4548173951850 + T3758-500ML:4548173951867 + T3758-VAR:

jan

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Certificates of Analysis (COA)

Lot/Batch Number
BCCG6954
BCCD8439
BCCC5965
MKBQ7395V
MKCC7575

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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.
Salavati-Niasari M, et al.
Chemical Engineering Journal, 145(2), 346-350 (2008)
Daryl Sivakumaran et al.
Soft matter, 13(47), 9060-9070 (2017-11-28)
Highly monodisperse and hydrolytically degradable thermoresponsive microgels on the tens-to-hundreds of micron size scale have been fabricated based on simultaneous on-chip mixing and emulsification of aldehyde and hydrazide-functionalized poly(N-isopropylacrylamide) precursor polymers. The microfluidic chip can run for extended periods without
Baofu Han et al.
Colloids and surfaces. B, Biointerfaces, 100, 209-214 (2012-07-07)
Fluorescent carbon dots (CDs) were solvothermaly synthesized in water-glycol medium by using glucose as carbon source and then modified with polyethyleneimine (PEI) for the first time to improve fluorescence quality. The as-prepared CDs were monodispersed sphere particles with a diameter
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