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402923

Sigma-Aldrich

Chloroacetic acid

ACS reagent, ≥99.0%

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Synonym(s):
Monochloroacetic acid
Linear Formula:
ClCH2COOH
CAS Number:
Molecular Weight:
94.50
Beilstein/REAXYS Number:
605438
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

vapor density

3.26 (vs air)

vapor pressure

0.75 mmHg ( 20 °C)

assay

≥99.0%

form

solid

impurities

≤0.01% Carbonyl compounds (as acetone)
≤0.01% Carbonyl compunds (other than acetone)
≤0.01% insolubles

ign. residue

<0.02%

bp

189 °C (lit.)

mp

60-63 °C (lit.)

solubility

water: soluble 3170 g/L at 10 °C

anion traces

chloride (Cl-): ≤0.01%
sulfate (SO42-): ≤0.02%

cation traces

Fe: ≤0.002%
heavy metals: ≤0.001% (by ICP)

SMILES string

OC(=O)CCl

InChI

1S/C2H3ClO2/c3-1-2(4)5/h1H2,(H,4,5)

InChI key

FOCAUTSVDIKZOP-UHFFFAOYSA-N

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General description

Chloroacetic acid (CAA, monochloroacetic acid, MCAA) is a halogenated aliphatic carboxylic acid. Its mutagenic effects have been studied in Rattus norvegicus. The rate of degradation of MCA by photocatalysis using TiO2 at pH3 is reported to be enhanced under the influence of ozone. CAA is an irritant that hydrolyzes proteins resulting in degradation of the cells. This property has been applied in treating plantar warts.

Application

Chloroacetic acid may be used to synthesize the following:
  • Thiocarbamoylthioacetic acid derivatives.
  • 4-Thiazolone derivatives.
  • Triazinothiazolone derivatives.
  • Water soluble carboxymethyl chitosan.

Disclaimer

“The product is not intended for use as a biocide under global biocide regulations, including but not limited to US EPA′s Federal Insecticide Fungicide and Rodenticide Act, European Biocidal Products Regulation, Canada’s Pest Management Regulatory Agency, Turkey’s Biocidal Products Regulation, Korea’s Consumer Chemical Products and Biocide Safety Management Act (K-BPR) and others.”

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Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Eye Dam. 1 - Skin Corr. 1B - STOT SE 3

target_organs

Respiratory system

Storage Class

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 3

flash_point_f

258.8 °F - closed cup

flash_point_c

126 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges


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