Nitrogen
CAS 7727-37-9N228.014 g/mol
Dinitrogen is an elemental molecule consisting of two trivalently-bonded nitrogen atoms. It has a role as a member of food packaging gas and a food propellant. It is a gas molecular entity, an elemental molecule and a diatomic nitrogen. It is a conjugate base of a diazynium.
IUPAC: molecular nitrogen
PubChem
Physical & Chemical Properties
| Melting Point | -354 °F (USCG, 1999) |
| Boiling Point | -320.1 °F at 760 mmHg (USCG, 1999) |
| Density | 0.807 at -319.9 °F (USCG, 1999) - Less dense than water; will float |
| Solubility | In water, 1.81X10+4 mg/L at 21 °C |
| Vapor Pressure | -236 °C at 1Pa (solid); -232 °C at 10Pa (solid); -226.8 °C at 100Pa (solid); -220.2 °C at 1kPa (solid); -211.1 °C at 10kPa (solid); -195.9 °C at 100kPa (N2) |
| Appearance | Nitrogen appears as a colorless odorless gas. Noncombustible and nontoxic. Makes up the major portion of the atmosphere, but will not support life by itself. Used in food processing, in purging air conditioning and refrigeration systems, and in pressurizing aircraft tires. May cause asphyxiation by displacement of air. Under prolonged exposure to fire or heat containers may rupture violently and rocket. |
Data: PubChem · Last updated: 4/20/2026
GHS Classification
No GHS classification data available.
Classification data is sourced from ECHA.
Regulatory Compliance
TSCA
Listed
note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory
View sourceGlobal Trade Intelligence
No trade flow data available for this chemical.
HS Code(s): 2804
Data: UN Comtrade
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