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79-43-6

Name Dichloroacetic acid
CAS 79-43-6
EINECS(EC#) 201-207-0
Molecular Formula C2H2Cl2O2
MDL Number MFCD00004223
Molecular Weight 128.94
MOL File 79-43-6.mol

Chemical Properties

Appearance DCA is a corrosive, combustible, colorless liquid with a pungent odor.
Melting point  9-11 °C(lit.)
Boiling point  194 °C(lit.)
density  1.563 g/mL at 25 °C(lit.)
vapor density  4.5 (vs air)
vapor pressure  0.19 mm Hg ( 20 °C)
refractive index  n20/D 1.466(lit.)
Fp  >230 °F
storage temp.  0-6°C
form  Liquid
pka 1.48(at 25℃)
color  APHA: <50
PH 1.2 (129g/l, H2O, 20℃)
Stability: Stable. Incompatible with strong oxidizing agents, strong bases, strong reducing agents. Reacts with water. Protect from moisture. Hygroscopic.
Water Solubility  soluble
Sensitive  Hygroscopic
Merck  14,3050
BRN  1098596
Exposure limits ACGIH: TWA 0.5 ppm (Skin)
InChIKey JXTHNDFMNIQAHM-UHFFFAOYSA-N
CAS DataBase Reference 79-43-6(CAS DataBase Reference)
IARC 2B (Vol. 63, 84, 106) 2014
NIST Chemistry Reference Acetic acid, dichloro-(79-43-6)
EPA Substance Registry System 79-43-6(EPA Substance)

Safety Data

Hazard Codes  Xn,N,C,Xi,F
Risk Statements 
R36/38:Irritating to eyes and skin .
R40:Limited evidence of a carcinogenic effect.
R50:Very Toxic to aquatic organisms.
R35:Causes severe burns.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S36/37:Wear suitable protective clothing and gloves .
S36:Wear suitable protective clothing .
S16:Keep away from sources of ignition-No smoking .
RIDADR  UN 1764 8/PG 2
WGK Germany  2
RTECS  AG6125000
3-10
TSCA  Yes
HazardClass  8
PackingGroup  II
HS Code  29154000
Safety Profile
Moderately toxic by skin contact and ingestion. It is corrosive to the skin, eyes, and mucous membranes. Questionable carcinogen with experimental tumorigenic data. Will react with water or steam to produce toxic and corrosive fumes. When heated to decomposition it emits toxic fumes of Cl-. See also CHLORIDES.
Hazardous Substances Data 79-43-6(Hazardous Substances Data)
Toxicity
LD50 orally in rats: 2.82 g/kg (Smyth)

Hazard Information

Material Safety Data Sheet(MSDS)

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