DINITROGEN MONOXIDE* - (10024-97-2)

Introduction

Name: dinitrogen monoxide*; nitrous oxide; laughing gas
* IUPAC
CAS Number: 10024-97-2
Chemical Formula: N2O
Molar Mass: 44.0128 g
State of Matter: colorless gas
Mass Percent: N 63.648 %; O 36.351 % 

Classification

• inorganic

Uses/Function

• "Dinitrogen monoxide has the useful property of being rather soluble in fats, a property exploited in making whipped cream. Cream is packaged with N2O under pressure to increase its solubility. When the pressure is released, some of the N2O escapes to form tiny bubbles, which whip the cream." 1

• "In small amounts it is a mild intoxicant, and because of this property it has been called laughing gas." 2

• "Carbon dioxide and water are not the only greenhouse gases. Methane, the CFCs, N2O, O3, and CO also absorb infrared radiation. Although they are present in the atmosphere at very low concentrations, they absorb infrared radiation relatively strongly and in regions of the spectrum not absorbed by CO2 and H2O." 3

Bonding

Bonding: polar covalent
Ionic Character: 12.12 %

Thermochemistry

ΔHf° (g): 19.61 kcal/mol 4 = 82.05 kJ/mol
S° (g): 52.52 cal/(mol•K) 5 = 219.74 J/(mol•K)
ΔGf° (g): 24.90 kcal/mol 6 = 104.18 kJ/mol

Safety Information

NFPA 704 Ratings:
Health: 2 - Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury.
Flammability: 0 - Will not burn.
Reactivity: 0 - Normally stable, even under fire exposure conditions, and is not reactive with water.
Special Hazard: OX - Oxidizer.

For More Information

Sources

(1) - Gillespie, Ronald J., Eaton, Donald R., Humphreys, David A., and Robinson, Edward A. Atoms, Molecules, and Reactions; Prentice-Hall: Englewood Cliffs, NJ, 1994; p 588.
(2) - Gillespie, Ronald J., Eaton, Donald R., Humphreys, David A., and Robinson, Edward A. Atoms, Molecules, and Reactions; Prentice-Hall: Englewood Cliffs, NJ, 1994; p 588.
(3) - Gillespie, Ronald J., Eaton, Donald R., Humphreys, David A., and Robinson, Edward A. Atoms, Molecules, and Reactions; Prentice-Hall: Englewood Cliffs, NJ, 1994; p 607.
(4) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(5) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(6) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.