SORBIC ACID - (110-44-1)

introduction

prénom: sorbic acid; (2E,4E)-hexa-2,4-dienoic acid
* IUPAC
Numero CAS: 110-44-1
Formule chimique: C8H8O2
Masse molaire: 136.14792 g
Pourcentage de masse: C 70.574 %; H 5.9226 %; O 23.502 % 
isomères:  phenylacetic acid*  •  o-toluic acid  •  m-toluic acid  •  p-toluic acid

Classification

• BIO • alcène • acide carboxylique

Bonding

Obligations doubles: 3
Obligations Triple: 0
Obligations Sigma: 17
Obligations Pi: 3
Total: 20
carboxyl Groupes: 1
Les groupes hydroxylés: 0
Hybridation: double bonded carbons and oxygen are sp2; single bonded carbons and oxygen are sp3

Thermochimie

ΔHf° (s): -93.4 kcal/mol 1 = -390.79 kJ/mol
The heat of combustion is the amount of heat released when one mole of a substance undergoes combustion according to the general reaction equation:
CxHyOz + 0.25(4x+y-2z) O2 (g) → x CO2 (g) + 0.5y H2O (ℓ)

ΔHcomb° (s): -932.26 kcal = -3900.6144 kJ

Pour plus d'informations

Sources

(1) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:90.
(2) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:90.
(3) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:90.