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Nitrates and nitrites

Nitrogen dioxide safety data

GHS hazards, precautions, first aid, handling and transport for Nitrogen dioxide. A classification summary, not a safety data sheet.
CAS 10102-44-0Formula NO2

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

GHS classification

Pictograms, signal word and hazard classes of the GHS classification

GHS03: Oxidiser
Oxidiser
GHS04: Gas under pressure
Gas under pressure
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
Signal word
Danger
030
NFPA 704 rating
health, fire, reactivity

Hazard classes and categories

  • Ox. Gas 1
  • Skin Corr. 1
  • Acute Tox. 1/2 (inhalation)

Hazard statements

H codes grouped by type. Percentages show the share of classification notifications that report the statement

Physical hazards

  • H270May cause or intensify fire, oxidiser.

Health hazards

  • H314Causes severe skin burns and eye damage.
  • H330Fatal if inhaled.

Precautionary statements

P codes for prevention, response, storage and disposal

Prevention

  • P220Keep away from clothing and other combustible materials.
  • P244Keep valves and fittings free from oil and grease.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.

Response

  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P320Specific treatment is urgent (see supplemental first aid instructions on the label).
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P363Wash contaminated clothing before reuse.
  • P370 + P376In case of fire: Stop leak if safe to do so.

Storage

  • P403Store in a well-ventilated place.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.

Disposal

  • P501Dispose of contents and container in accordance with local regulations.

First aid

General first aid measures. Get medical advice if you feel unwell

If inhaled
Respiratory support.
Skin contact
If this chemical contacts the skin, immediately flush the contaminated skin with water. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water. Get medical attention promptly.
Eye contact
If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
If swallowed
If this chemical has been swallowed, get medical attention immediately.

Handling, storage and disposal

Summaries only, follow the supplier SDS for your grade

Safe handling

Fire: NO contact with combustible substances.

General: AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!

Inhalation: Use breathing protection, closed system or ventilation.

Skin: Protective gloves. Protective clothing.

Eyes: Wear safety goggles or eye protection in combination with breathing protection.

Ingestion: Do not eat, drink, or smoke during work.

Storage

Ventilation along the floor. Separated from combustible substances and reducing agents.

Disposal

Generators of waste (equal to or greater than 100 kg/mo) containing this contaminant, EPA hazardous waste number P078, must conform with USEPA regulations in storage, transportation, treatment and disposal of waste. Nitrogen dioxide is a poor candidate for incineration.

Exposure limits and toxicity

Occupational exposure limits and toxicity data

OSHA PEL, ceiling
5 ppm (9 mg/m³)
NIOSH REL, STEL
1 ppm (1.8 mg/m³)
ACGIH TLV
8 hr Time Weighted Avg (TWA): 3 ppm, 15 min Short Term Exposure Limit (STEL): 5 ppm
IDLH
13 ppm

Short-term exposure: The substance is corrosive to the eyes, skin and respiratory tract. Exposure at high concentrations could cause asphyxiation due to swelling in the throat. Inhalation of the gas or vapour may cause lung oedema. Exposure far above the OEL could cause death. The effects may be delayed. Severe effects may occur following a prolonged symptom-free period. Medical observation is indicated. Long-term exposure: The substance may have effects on the lungs. This may result in impaired functions and decreased resistance to infection.

Transport information

UN dangerous goods classification for road, sea and air

UN number
UN 1067
Transport hazard class
2.3

Shipping rules depend on mode, quantity and packaging. Confirm the classification with the supplier SDS and your freight forwarder.

Supplier safety data sheets

SDS documents uploaded by suppliers who list this chemical

No supplier has uploaded an SDS for Nitrogen dioxide yet. Suppliers usually send one with their quote. Request quotes

Safety questions

Quick answers about handling Nitrogen dioxide safely

Is Nitrogen dioxide hazardous?

Nitrogen dioxide carries the GHS signal word "Danger". Main hazards: may cause or intensify fire, oxidiser, causes severe skin burns and eye damage, fatal if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

Which GHS pictograms apply to Nitrogen dioxide?

The GHS classification of Nitrogen dioxide shows 4 pictograms: GHS03 (oxidiser), GHS04 (gas under pressure), GHS05 (corrosive), GHS06 (acute toxicity (severe)).

What is the UN number of Nitrogen dioxide?

Nitrogen dioxide is transported under UN 1067, hazard class 2.3. Check the supplier SDS and the current ADR, IMDG or IATA rules before shipping.

How should Nitrogen dioxide be stored?

Ventilation along the floor. Separated from combustible substances and reducing agents.

Where can I get the SDS for Nitrogen dioxide?

Ask the supplier for the safety data sheet of the exact grade you buy. Suppliers on CompoundList can attach their SDS to listings and send it with a quote. This page is a GHS classification summary, not an SDS.

GHS classification summary, not an SDS. Always check the supplier's SDS. Last updated 7 Oct 2026. Report an error

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