Basic information The simplest organic nitrile Toxic and hazardous effects Purification methods Laboratory use Uses Production method Safety Related Supplier
Acetonitrile  Structure

Acetonitrile

Chemical Properties

Melting point ?45 °C (lit.)
Boiling point 81-82 °C (lit.)
Density  0.786 g/mL at 25 °C (lit.)
vapor density  1.41 (vs air)
vapor pressure  72.8 mm Hg ( 20 °C)
refractive index  n20/D 1.344(lit.)
Flash point 48 °F
storage temp.  Store at +5°C to +30°C.
solubility  organic solvents: soluble(lit.)
pka 25(at 25℃)
form  liquid
color  <10(APHA)
Specific Gravity approximate 0.78(20/20℃)
Odor Aromatic ether-like odor detectable at 40 ppm
Relative polarity 0.46
explosive limit 3.0-17%(V)
Odor Threshold 13ppm
Water Solubility  miscible
λmax λ: 195 nm Amax: ≤0.12
λ: 200 nm Amax: ≤0.032
λ: 230 nm Amax: ≤0.0044
λ: 235 nm Amax: ≤0.0044
λ: 250 nm Amax: ≤0.0044
λ: 400 nm Amax: ≤0.0044
Merck  14,70
BRN  741857
Henry's Law Constant 7.30 at 5 °C, 8.90 at 10 °C, 11.6 at 15 °C, 14.6 at 20 °C, 17.6 at 25 °C (headspace-GC, Ji and Evans, 2007)
Exposure limits TLV-TWA 70 mg/m3 (40 ppm) (ACGIH and OSHA); STEL 105 mg/m3 (60 ppm) (ACGIH); IDLH 4000 ppm (NIOSH).
Dielectric constant 37.5(21℃)
Stability Incompatible with alkali metals, acids, bases, reducing agents and oxidizing agents. Highly flammable.
LogP -0.340
CAS DataBase Reference 75-05-8(CAS DataBase Reference)
NIST Chemistry Reference Acetonitrile(75-05-8)
EPA Substance Registry System Acetonitrile (75-05-8)

Safety Information

Hazard Codes  F,Xi,Xn,T
Risk Statements  11-36-20/21/22-10-36/37/38-23/24/25-41-24-20/22
Safety Statements  16-36/37-45-36/37/39-27-26-36
RIDADR  UN 1993 3/PG 3
WGK Germany  2
RTECS  AL7700000
9
Autoignition Temperature 524 °C
Hazard Note  Highly Flammable/Harmful/Irritant
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29269095
Hazardous Substances Data 75-05-8(Hazardous Substances Data)
Toxicity LD50 orally in rats: 3800 mg/kg (Smyth)
IDLA 137 ppm

MSDS

Usage And Synthesis

Preparation Products And Raw materials

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