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NIOSH

OXYGEN

ICSC: 0138

O2
Molecular mass: 32.0
(cylinder)
ICSC # 0138 		CAS # 7782-44-7
RTECS # RS2060000
UN # 1072
EC # 008-001-00-8
October 20, 1999 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Not combustible but enhances combustion of other substances. Heating will cause rise in pressure with risk of bursting.
NO open flames, NO sparks, and NO smoking. NO contact with flammable 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


•INHALATION Cough. Dizziness. Sore throat. Visual disturbance. See Notes.

Refer for medical attention.
•SKIN


•EYES
Safety goggles.

•INGESTION


SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Ventilation.
Fireproof. Separated from combustible and reducing substances. Cool.

O symbol
R: 8
S: 2-17
UN Hazard Class: 2.2
UN Subsidiary Risks: 5.1
ICSC: 0138 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

OXYGEN

ICSC: 0138

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
ODOURLESS COMPRESSED GAS

PHYSICAL DANGERS:
The gas is heavier than air.

CHEMICAL DANGERS:
The substance is a strong oxidant and reacts with combustible and reducing materials, causing fire and explosion hazard.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation.

INHALATION RISK:


EFFECTS OF SHORT-TERM EXPOSURE:
The substance at very high concentrations is irritating to the respiratory tract. The substance may cause effects on the central nervous system,lungs and eyes.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Lungs may be affected by inhalation of high concentrations.

PHYSICAL
PROPERTIES

Boiling point: -183°C
Melting point: -218.4°C
Solubility in water, ml/100 ml at 20°C: 3.1
Relative vapour density (air = 1): 1.1
Octanol/water partition coefficient as log Pow: 0.65

ENVIRONMENTAL
DATA


N O T E S

Inhalation symptoms are characteristic of exposure to extremely high concentrations only. See also ICSC0880 Oxygen refrigerated liquid (cryogenic liquid). Card has been partly updated in October 2005. See sections Physical properties, Emergency Response.
Transport Emergency Card: TEC (R)-20S1072 or 20G1O

ADDITIONAL INFORMATION



ICSC: 0138 OXYGEN
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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