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Safety Data Sheet · SDS / MSDS

Nitrogen N₂ — SDS

Nitrogen, compressed · Industrial nitrogen
UN No: 1066CAS: 7727-37-9Class: 2.2 — Non-flammable, inert gasSignal: Warning
0
0
0
SA
NFPA 704: Health 0 · Fire 0 · Reactivity 0 · Special SA
SA = Simple asphyxiant.

Hazard identification (GHS)

  • Contains gas under pressure; may explode if heated (H280).
  • Simple asphyxiant — displaces oxygen and can cause rapid suffocation with no warning (H-EUH).

First-aid measures

Inhalation (asphyxiation): remove the victim to fresh air immediately; rescuers must use self-contained breathing apparatus in oxygen-deficient areas. Give artificial respiration if not breathing and oxygen if breathing is difficult. Get medical help.

Handling & storage

  • Ensure adequate ventilation; monitor oxygen levels in confined spaces before entry.
  • Store cylinders upright, capped, below 52 °C; segregate full and empty cylinders.
  • Move with a cylinder trolley; open valves slowly; keep valves free of oil and grease.

Physical & chemical properties

AppearanceColourless gas
OdourOdourless
Molecular weight28.01
Boiling point−195.8 °C
Relative density (air = 1)0.97
SolubilityVery slight

Stability & reactivity

Stable and inert. No hazardous reactions or decomposition. Will not polymerise.

Transport information

Nitrogen, compressed — Class 2.2, UN 1066, Label: Non-flammable gas.

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This is a summary Safety Data Sheet for reference. For the full signed SDS, grades, purity and cylinder options, contact our team.

Frequently asked questions

Nitrogen (N₂) is classified as 2.2 — Non-flammable, inert gas. No — it is a non-flammable gas.
Nitrogen is shipped as Nitrogen, compressed — Class 2.2, UN 1066, Label: Non-flammable gas.
The CAS number of Nitrogen is 7727-37-9.
This page is the IIGAS Nitrogen (N₂) Safety Data Sheet summary. For the full signed SDS document, contact IIGAS at marketing@iigas.com.

Reference summary only, compiled by International Industrial Gases Ltd (updated 2026-07-20). Values are for the compressed-gas form. It does not replace the full signed Safety Data Sheet supplied with the product; always follow the SDS provided with your cylinders.

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