Crotonic acid nitrile

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Structural formula
Structural formula of crotonic acid nitrile
General
Surname Crotonic acid nitrile
Molecular formula C 4 H 5 N
Brief description

yellowish liquid

External identifiers / databases
CAS number 4786-20-3
EC number 225-335-1
ECHA InfoCard 100.023.032
PubChem 637921
Wikidata Q2672058
properties
Molar mass 67.09 g mol −1
Physical state

liquid

density

0.82 g cm −3 (25 ° C)

Melting point

−50 ° C

boiling point

120-121 ° C

Vapor pressure

50 h Pa (30 ° C)

solubility

little in water (29 g l −1 at 20 ° C)

Refractive index

1.419 (20 ° C)

safety instructions
GHS labeling of hazardous substances
02 - Highly / extremely flammable 07 - Warning

danger

H and P phrases H: 225-302-315-319-335
P: 210-261-305 + 351 + 338
Thermodynamic properties
ΔH f 0

95.1 kJ / mol

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Crotonic acid nitrile is an unsaturated nitrile with a trans -substituted carbon-carbon double bond. The isomeric cis compound is of little importance. The compound is a yellowish liquid. Another isomeric compound is allyl cyanide .

Individual evidence

  1. a b c d e f g h Entry on crotonitrile in the GESTIS substance database of the IFA , accessed on February 8, 2017(JavaScript required) .
  2. Data sheet Crotononitrile, mixture of cis and trans from Sigma-Aldrich , accessed on June 3, 2011 ( PDF ).
  3. David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Standard Thermodynamic Properties of Chemical Substances, pp. 5-25.