Chloroacetic Acid , >99.0%(GC)(T) , 79-11-8
Synonym(s):
Chloroacetic acid;Monochloroacetic acid
CAS NO.：79-11-8
Empirical Formula: C2H3ClO2
Molecular Weight: 94.5
MDL number: MFCD00002683
EINECS: 201-178-4
PRODUCT Properties
| Melting point: | 60-63 °C (lit.) |
| Boiling point: | 189 °C (lit.) |
| Density | 1.58 |
| vapor density | 3.26 (vs air) |
| vapor pressure | 0.75 mm Hg ( 20 °C) |
| refractive index | 1.4330 |
| Flash point: | 126°C |
| storage temp. | Store below +30°C. |
| solubility | Soluble in methanol, acetone, diethyl ether, benzene, chloroform and ethanol. |
| pka | 2.85(at 25℃) |
| form | Liquid |
| color | White |
| Odor | Penetrating, burning odor |
| PH Range | < 1 at 800 g/l at 20 °C |
| explosive limit | 8% |
| Water Solubility | SOLUBLE |
| Sensitive | Hygroscopic |
| Merck | 14,2112 |
| Specific Activity | 5-10 Ci/mmol |
| Solvent | Sterile water in sealed ampoule |
| Concentration | 1 mCi/ml |
| BRN | 605438 |
| Dielectric constant | 12.3（60℃） |
| Stability: | Stable. Deliquescent. Incompatible with strong bases, alkalies, most common metals, strong oxidizing agents. |
| LogP | 0.49 at 20℃ |
Description and Uses
Chloroacetic acid (CAA) is a monohalogenated acetic acid (m-HAA) that is used as a photosensitizing agent and in industrial synthesis of certain organic chemicals such as indigoid dyes. The m-HAAs are a major class of drinking water disinfection by-products during chlorination of drinking water.
CAA is one of these agents used in the topical treatment of warts in most European countries and also as an herbicidal agent and a bleaching agent for silkworm cocoons. It can be found in wines and beers using static headspace extraction coupled with gas chromatography–mass spectrometry. CCA is the main toxic metabolite of vinyl chloride. CAA and volatile organochlorines are suspected to contribute to forest dieback and stratospheric ozone destruction.
Safety
| Symbol(GHS) |    GHS05,GHS06,GHS09 |
| Signal word | Danger |
| Hazard statements | H301+H311+H331-H314-H335-H400 |
| Precautionary statements | P260-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 |
| Hazard Codes | T,N,Xi,F |
| Risk Statements | 25-34-50-40-36/37/38-23/24/25-38 |
| Safety Statements | 23-37-45-61-36-26-16-63-36/37/39 |
| RIDADR | UN 1751 6.1/PG 2 |
| WGK Germany | 2 |
| RTECS | AF8575000 |
| F | 3 |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | II |
| HS Code | 29154000 |
