HEXANOIC ACID* - (142-62-1)

Introduction

Name: hexanoic acid*; caproic acid
* IUPAC
CAS Number: 142-62-1
Chemical Formula: C6H12O2 or C5H11COOH
Molar Mass: 116.15828 g
State of Matter: oily liquid
Mass Percent: C 62.039 %; H 10.412 %; O 27.547 % 
Isomers:  ethyl butyrate  •  propyl propionate  •  4-hydroxy-4-methyl-2-pentanone  •  butyl acetate  •  isopropyl glycidyl ether  •  2-methylpentanoic acid  •  ethyl isobutyrate

Classification

• organic

Physical Properties

Melting Point:*
-3°C 1 = 270.15 K = 26.6°F
Boiling Point:*
205.2°C 1 = 478.35 K = 401.36°F
Density (g/cm3):
0.9274 at 20 °C 1
* - 1 atm pressure

Solubility

Qualitative:
insoluble:  1
slightly soluble:  1
soluble:  1
very soluble:  1

Bonding

Thermochemistry

ΔHf° (ℓ): -139.71 kcal/mol 2 = -584.55 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° (ℓ): -834.48 kcal = -3491.49336 kJ

For More Information

Sources

(1) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 3-189.
(2) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:69.
(3) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:69.
(4) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:69.