Propionitrile

C₃H₅NMolar mass55.080 g·mol Appearance Colourless liquid OdorSweetish, pleasant, ethereal Density772 mg mL Melting point−100 to −86 °C; −148 to −123 °F; 173 to 187 K Boiling point96 to 98 °C; 205 to 208 °F; 369 to 371 K

Solubility in water

11.9% (20 °C) log P0.176 Vapor pressure270 μmol Pa kg

Magnetic susceptibility (χ)

−38.5·10 cm/mol

Refractive index (n_D)

1.366 Thermochemistry

Heat capacity(C)

105.3 J K mol

Std molar
entropy(S₂₉₈)

189.33 J K mol

Std enthalpy of
formation(Δ_fH₂₉₈)

15.5 kJ mol

Std enthalpy of
combustion(Δ_cH₂₉₈)

−1.94884–−1.94776 MJ mol Hazards GHS labelling:

Pictograms

Signal word

Danger

Hazard statements

H225, H300, H310, H319, H332

Precautionary statements

P210, P264, P280, P301+P310, P302+P350, P305+P351+P338NFPA 704 (fire diamond)

4

3

0

Flash point6 °C (43 °F; 279 K) Explosive limits3.1%-? Lethal dose or concentration (LD, LC):

LD₅₀ (median dose)

39 mg kg (oral, rat)NIOSH (US health exposure limits):

PEL (Permissible)

none

REL (Recommended)

TWA 6 ppm (14 mg/m)

IDLH (Immediate danger)

N.D. Related compounds

Related alkanenitriles

Related compounds

DBNPA

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

verify ( ?)

Propionitrile, also known as ethyl cyanide and propanenitrile, is an organic compound with the formula CH₃CH₂CN. It is a simple aliphatic nitrile. The compound is a colourless, water-soluble liquid. It is used as a solvent and a precursor to other organic compounds.