ISOPROPYL ALCOHOL - (67-63-0)

Introduction

Name: isopropyl alcohol; propan-2-ol*; 2-propanol
* IUPAC
CAS Number: 67-63-0
Chemical Formula: C3H8O or (CH3)2CHOH
Molar Mass: 60.09502 g
State of Matter: colorless liquid
Mass Percent: C 59.958 %; H 13.417 %; O 26.623 % 
Isomers:  1-propanol

Classification

Physical Properties

Melting Point:*
-89.5°C 1 = 183.65 K = -129.1°F
Boiling Point:*
82.3°C 1 = 355.45 K = 180.14°F
82.3°C 2 = 355.45 K = 180.14°F
83°C 3 = 356.15 K = 181.4°F
Density (g/cm3):
0.7809 at 25°C 1
* - 1 atm pressure

Solubility

Qualitative:
soluble:  3
miscible:  • • 3

Bonding

Double Bonds: 0
Triple Bonds: 0
Sigma Bonds: 11
Pi Bonds: 0
Total: 11
Carboxyl Groups: 0
Hydroxyl Groups: 1
Hybridization: carbons and oxygen are sp3

Thermochemistry

ΔHf° (ℓ): -75.97 kcal/mol 4 = -317.86 kJ/mol
ΔHf° (g): -65.11 kcal/mol 4 = -272.42 kJ/mol
S° (ℓ): 43.16 cal/(mol•K) 5 = 180.58 J/(mol•K)
S° (g): 74.07 cal/(mol•K) 5 = 309.91 J/(mol•K)
ΔGf° (ℓ): -43.09 kcal/mol 6 = -180.29 kJ/mol
ΔGf° (g): -41.44 kcal/mol 6 = -173.38 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): -479.44 kcal = -2005.99152 kJ
ΔHcomb° (g): -490.3 kcal = -2051.42976 kJ

Safety Information

NFPA 704 Ratings:
Health: 2 - Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury.
Flammability: 3 - Liquids and solids that can be ignited under almost all ambient temperature conditions. Liquids having a flash point below 23°C (73°F) and having a boiling point at or above 38°C (100°F) or having a flash point between 23°C (73°F) and 38°C (100°F).
Reactivity: 1 - Normally stable, but can become unstable at elevated temperatures and pressures.

For More Information

Sources

(1) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 3-282.
(2) - Estok, George K. Organic Chemistry: A Short Text; W.B. Saunders: Philadelphia, 1959; p 85.
(3) - Shriner, Ralph L., Fuson, Reynold C., and Curtin, David Y. The Systematic Identification of Organic Compounds, 4th ed.; John Wiley & Sons: New York, 1962; p 280.
(4) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:89.
(5) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:89.
(6) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:89.