ICSC 1311 - NITRIC OXIDE

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

NITRIC OXIDE

ICSC: 1311
_{November 1998}

Nitrogen oxide
Mononitrogen monoxide

CAS No: 10102-43-9
RTECS No: QX0525000
UN No: 1660

(cylinder)
NO
Molecular mass: 30.01

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible but enhances combustion of other substances.		In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION			In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position.

EXPOSURE		STRICT HYGIENE!
Inhalation	Abdominal pain. Cough. Headache. Drowsiness. Burning sensation. Nausea. Dizziness. Confusion. Blue skin. Blue lips or finger nails. Shortness of breath. Convulsions. Unconsciousness. Symptoms may be delayed (see Notes).	Ventilation, local exhaust, or breathing protection.	Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
Skin			Refer for medical attention.
Eyes	Redness.	Safety goggles or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Gas-tight chemical protection suit including self-contained breathing apparatus.	UN Hazard Class: 2.3 UN Subsidiary Risks: 5.1 and 8

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-20S1660 or 20G1TOC NFPA Code: H3; F0; R0; OX	Fireproof if in building. Keep in a well-ventilated room.

IMPORTANT DATA

Physical State; Appearance
COLOURLESS COMPRESSED GAS

Chemical dangers
The substance is a strong oxidant and reacts with combustible and reducing materials. On contact with air it emits nitrogen dioxide.

Occupational exposure limits
TLV: 25 ppm as TWA; BEI issued; (ACGIH 2004).

Routes of exposure
The substance can be absorbed into the body by inhalation.

Inhalation risk
A harmful concentration of this gas in the air will be reached very quickly on loss of containment.

Effects of short-term exposure
The substance is irritating to the eyes and the respiratory tract. Inhalation of the substance may cause lung oedema (see Notes). The substance may cause effects on the blood, resulting in formation of methaemoglobin. Exposure may result in death. The effects may be delayed. Medical observation is indicated.

Effects of long-term or repeated exposure
Lungs may be affected by repeated or prolonged exposure.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: -151.8°C Melting point: -163.6°C Solubility in water, ml/100 ml at 0°C: 7.4 Relative vapour density (air = 1): 1.04

NOTES

The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation is therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
No odour warning if toxic concentrations are present.
Card has been partly updated in April 2005. See sections Occupational Exposure Limits, Emergency Response.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

LEGAL NOTICE

Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.

Updated by {ModOper}. Approved by {ModAppr}. Last update: {ModDate}