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79-11-8

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Basic Information
CAS No.: 79-11-8
Name: Chloroacetic acid
Article Data: 279
Molecular Structure:
Molecular Structure of 79-11-8 (Chloroacetic acid)
Formula: C2H3ClO2
Molecular Weight: 94.4976
Synonyms: Aceticacid, chloro- (8CI,9CI);Chloracetic acid;Chloroethanoicacid;MKhUK;Monochloroacetic acid;Monochloroethanoic acid;NSC 142;NSC42970;a-Chloroacetic acid;Chlorine acetic acid;
EINECS: 201-178-4
Density: 1.399 g/cm3
Melting Point: 61 °C
Boiling Point: 188.999 °C at 760 mmHg
Flash Point: 71.538 °C
Solubility: soluble in water
Appearance: colourless or white crystals
Hazard Symbols: ToxicT,DangerousN,IrritantXi,FlammableF
Risk Codes: 25-34-50-40-36/37/38
Safety: 23-37-45-61-36-26-16
Transport Information: UN 1751 6.1/PG 2
PSA: 37.30000
LogP: 0.30980
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Chemistry

Chloroacetic acid  is the chemical compound with the formula C2H3ClO2.Its molar weight is 94.50 .
Chloroacetic acid  chemical structural formula is .
Synonyms : Monochloroacetic acid; MCA
CAS Registry Number : 79-11-8
EINECS : 201-178-4
Density : 1.58
Melting point : 61-63 oC
Boiling point : 189 oC
Flash point : 126 oC
Water solubility : SOLUBLE
Vapor density : 3.26 (vs air)
Vapor pressure : 0.75 mm Hg ( 20 °C)
Refractive index : 1.4330
Chloroacetic acid is the chemical compound with the formula ClCH2CO2H.Like other chloroacetic acids and related halocarbons, Chloroacetic acid is a potentially dangerous alkylating agent.

Uses

This carboxylic acid is a useful building block in organic synthesis.

Toxicity Data With Reference

1.   

mma-mus:lym 548 mg/L

   MUREAV    Mutation Research. 97 (1982),49.
2.   

scu-mus TDLo:100 mg/kg:ETA

   NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB223-159 .
3.   

ihl-rat LC50:180 mg/m3

   GTPZAB    Gigiena Truda i Professionalnye Zabolevaniia. Labor Hygiene and Occupational Diseases. 18 (9)(1974),32.
4.   

scu-rat LD50:5 mg/kg

   TXAPA9    Toxicology and Applied Pharmacology. 22 (1972),303.
5.   

ivn-rat LD50:55 mg/kg

   GTPZAB    Gigiena Truda i Professionalnye Zabolevaniia. Labor Hygiene and Occupational Diseases. 18 (9)(1974),32.
6.   

orl-mus LD50:165 mg/kg

   JPETAB    Journal of Pharmacology and Experimental Therapeutics. 86 (1946),336.
7.   

scu-mus LD50:250 mg/kg

   AIPTAK    Archives Internationales de Pharmacodynamie et de Therapie. 116 (1958),154.

Consensus Reports

Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program. EPA Extremely Hazardous Substances List. Community Right-To-Know List.

Safety Profile

Poison by ingestion, inhalation, subcutaneous, and intravenous routes. A corrosive skin, eye, and mucous membrane irritant. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. Combustible liquid when exposed to heat or flame. To fight fire, use water spray, fog, mist, dry chemical, foam. When heated to decomposition it emits toxic fumes of Cl. See also CHLORIDES.
Analytical Methods:
For occupational chemical analysis use NIOSH: Chloroacetic Acid, 2008.
Hazard Symbols  :    T    ;    N  
The Risk Statements information of Chloroacetic acid R25:Toxic if swallowed.;R34:Causes burns;R50:Very toxic to aquatic organisms.
The Safety Statements information of Chloroacetic acid S23:Do not inhale gas/fumes/vapour/spray;S37:Wear suitable gloves;
S45:In case of accident of if you feel unwell, seek medical advice immediately (show the label where possible);
S61:Avoid release to the environment. Refer to special instructions / Safety data sheets.

Standards and Recommendations

DOT Classification:  8; Label: Corrosive, Poison (UN 1750)

Analytical Methods

For occupational chemical analysis use NIOSH: Chloroacetic Acid, 2008.