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Thioglycolic acid solution

~80% in H2O, for spectrophotometric det. of palladium, iron, uranium(VI), molybdates and nitrites

Synonym(s):

Mercaptoacetic acid

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About This Item

Linear Formula:
HSCH2COOH
CAS Number:
68-11-1
Molecular Weight:
92.12
Beilstein/REAXYS Number:
506166
MDL number:
MFCD00004876
UNSPSC Code:
12000000
PubChem Substance ID:
329769667
NACRES:
NA.21

form

liquid

Quality Level

100

quality

for spectrophotometric det. of palladium, iron, uranium(VI), molybdates and nitrites

concentration

~80% in H2O

technique(s)

UV/Vis spectroscopy: suitable

refractive index

n20/D 1.471

density

1.265 g/mL at 20 °C

SMILES string

OC(=O)CS

InChI

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

InChI key

CWERGRDVMFNCDR-UHFFFAOYSA-N

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General description

Thioglycolic acid is an organic colourless compound with thiol and carboxylic acid as functional group. It is mainly used to make depilatories. It is considered to be corrosive to metals and tissues.

Application

Mercaptoacetic acid has been used as a stabilizer for preparation of silver colloids, in a UV-vis spectroscopy study to establish stable and highly surface-enhanced Raman spectroscopy (SERS)-active silver colloids.

Other Notes

Reagent for the extraction and spectrophotometric determination of various transition metals, e.g. Pd; W; Mo; Ti

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pictograms

CorrosionSkull and crossbones
GHS05,GHS06

signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1

Storage Class

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 1

flash_point_f

266.0 °F - closed cup

flash_point_c

130 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
STBK9116
STBK6548
STBK4449
STBK1801
STBJ6279

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Sigma-Aldrich

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Sigma-Aldrich

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G. Wunsch et al.
Fresenius Journal of Analytical Chemistry, 295, 119-119 (1979)
S.P. Rao et al.
Indian J. Chem. A, 20, 639-639 (1981)
A. Diamantatos
Analytica Chimica Acta, 61, 233-233 (1972)
Mercaptoacetic acid-capped silver nanoparticles colloid: formation, morphology, and SERS activity.
Li, Xiaoling, et al.
Langmuir, 19.10, 4285-4290 (2003)
S Banerjee
Talanta, 33(4), 360-362 (1986-04-01)
A sensitive spectrophotometric method for the determination of titanium by formation of its complex with tannin and thioglycollic acid at pH 4 has been developed. The intense yellow colour is measured at 400 nm and the system obeys Beer's law
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