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Acetic acid Structure

Acetic acid

Product NameAcetic acid

CAS64-19-7

CBNumberCB7854064

MFC2H4O2

MW60.05

EINECS200-580-7

MDL NumberMFCD00011354

MOL File64-19-7.mol

MSDS FileSDS

Chemical Properties

Melting point 16.2 °C(lit.)
Boiling point 117-118 °C(lit.)
Density  1.049 g/mL at 25 °C(lit.)
vapor density  2.07 (vs air)
vapor pressure  11.4 mm Hg ( 20 °C)
refractive index  n20/D 1.371(lit.)
FEMA  2006 | ACETIC ACID
Flash point 104 °F
storage temp.  Store below +30°C.
solubility  alcohol: miscible(lit.)
form  Solution
pka 4.74(at 25℃)
Specific Gravity 1.0492 (20℃)
color  colorless
Odor Strong, pungent, vinegar-like odor detectable at 0.2 to 1.0 ppm
PH 3.91(1 mM solution);3.39(10 mM solution);2.88(100 mM solution);
PH Range 2.4 (1.0M solution)
Odor Threshold 0.006ppm
explosive limit 4-19.9%(V)
Water Solubility  miscible
λmax λ: 260 nm Amax: 0.05
λ: 270 nm Amax: 0.02
λ: 300 nm Amax: 0.01
λ: 500 nm Amax: 0.01
Merck  14,55
JECFA Number 81
BRN  506007
Henry's Law Constant 133, 122, 6.88, and 1.27 at pH values of 2.13, 3.52, 5.68, and 7.14, respectively (25 °C, Hakuta et al., 1977)
Exposure limits TLV-TWA 10 ppm ~25 mg/m3) (ACGIH, OSHA, and MSHA); TLV-STEL 15 ppm (37.5 mg/m3) (ACGIH).
CAS DataBase Reference 64-19-7(CAS DataBase Reference)
NIST Chemistry Reference Acetic acid(64-19-7)
EPA Substance Registry System Acetic acid (64-19-7)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H226-H314
Precautionary statements P210-P233-P240-P280-P303+P361+P353-P305+P351+P338
Hazard Codes  C,Xi
Risk Statements  34-42-35-10-36/38
Safety Statements  26-36/37/39-45-23-24/25
RIDADR  UN 1792 8/PG 2
WGK Germany  3
RTECS  NN1650000
1-8-10
Autoignition Temperature 426 °C
TSCA  Yes
HazardClass  8
PackingGroup  II
HS Code  29152100
Hazardous Substances Data 64-19-7(Hazardous Substances Data)
Toxicity LD50 in rats (g/kg): 3.53 orally (Smyth)
IDLA 50 ppm
NFPA 704:
2
3 0

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