2-METHYLPROPANE - (75-28-5)

Introduction

Name: 2-methylpropane; isobutane; methylpropane
* IUPAC
CAS Number: 75-28-5
Chemical Formula: C4H10
Molar Mass: 58.1222 g
State of Matter: colorless gas
Mass Percent: C 82.658 %; H 17.341 % 
Isomers:  butane

Classification

• organic • alkane

Physical Properties

Melting Point:*
-138.3°C 1 = 134.85 K = -216.94°F
Boiling Point:*
-10.2°C 2 = 262.95 K = 13.64°F
-11.7°C 1 = 261.45 K = 10.94°F
Density (g/cm3):
0.5510 at 25°C 1
* - 1 atm pressure

Solubility

Qualitative:
insoluble:  • 2
slightly soluble: 2
soluble:  • • 2

Bonding

Double Bonds: 0
Triple Bonds: 0
Sigma Bonds: 13
Pi Bonds: 0
Total: 13
Carboxyl Groups: 0
Hydroxyl Groups: 0
Hybridization: all carbons are sp3
Bonding: polar covalent
Ionic Character: 10.61 %

Reactions

For More Information

Sources

(1) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 3-275.
(2) - Estok, George K. Organic Chemistry: A Short Text; W.B. Saunders: Philadelphia, 1959; p 29.
(3) - Ebbing, Darrell D. General Chemistry 3rd ed.; Houghton Mifflin Company: Boston, MA, 1990; pp 77, 225.