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507-09-5

Name Thioacetic acid
CAS 507-09-5
EINECS(EC#) 208-063-8
Molecular Formula C2H4OS
MDL Number MFCD00004853
Molecular Weight 76.12
MOL File 507-09-5.mol

Chemical Properties

Appearance colourless fuming liquid with an unpleasant odour
Melting point  -17 °C
Boiling point  97 °C
density  1.065 g/mL at 25 °C(lit.)
vapor pressure  1 hPa (20 °C)
FEMA  4210 | THIOACETIC ACID
refractive index  n20/D 1.465(lit.)
Fp  52 °F
storage temp.  Refrigerator
solubility  27g/l (slow decomposition)
form  Liquid
pka 3.33(at 25℃)
color  Clear colorless to pale yellow
Odor at 0.01 % in propylene glycol. cooked roasted meaty burnt
PH 1.8 (100g/l, H2O, 20℃)Hydrolysis
Stability: Stable. Flammable. Incompatible with metals, strong oxidizing agents.
Odor Type meaty
Water Solubility  27 g/L (15 ºC) (hydrolyse)
JECFA Number 1676
Merck  14,9320
BRN  773684
Dielectric constant 13.0(20℃)
LogP 0.14
Uses
Chemical reagent, lachrymator.
CAS DataBase Reference 507-09-5(CAS DataBase Reference)
NIST Chemistry Reference Ethanethioic acid(507-09-5)
EPA Substance Registry System 507-09-5(EPA Substance)

Safety Data

Hazard Codes  F,C
Risk Statements 
R11:Highly Flammable.
R34:Causes burns.
R22:Harmful if swallowed.
Safety Statements 
S9:Keep container in a well-ventilated place .
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
RIDADR  UN 2436 3/PG 2
WGK Germany  3
RTECS  AJ5600000
13-19
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29309070
Safety Profile
Poison by intraperitoneal route. A very dangerous fire hazard when exposed to heat or flame. When heated to decomposition it emits toxic fumes of SOx. See also SULFIDES and MERCAPTANS.
Toxicity
LD50 orally in Rabbit: 200 - 350 mg/kg

Hazard Information

Material Safety Data Sheet(MSDS)

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