ICSC 0138 - OXYGEN

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OXYGEN	ICSC: 0138 (October 1999)

CAS #: 7782-44-7

UN #: 1072

EC Number: 231-956-9

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	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 flammables.	In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Dizziness. Sore throat. Visual disturbances. See Notes.		Refer for medical attention.
Skin
Eyes		Wear safety goggles.
Ingestion

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Ventilation.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 2.2; UN Subsidiary Risks: 5.1
STORAGE
Fireproof. Separated from combustible substances and reducing agents. Cool.
PACKAGING

OXYGEN

ICSC: 0138

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance ODOURLESS COMPRESSED GAS. Physical dangers The gas is heavier than air. Chemical dangers The substance is a strong oxidant. It reacts with combustible and reducing materials. This generates fire and explosion hazard.	Formula: O₂ Molecular mass: 32.0 Boiling point: -183°C Melting point: -218.4°C Solubility in water, ml/100ml at 20°C: 3.1 Relative vapour density (air = 1): 1.1 Octanol/water partition coefficient as log Pow: 0.65

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
ODOURLESS COMPRESSED GAS.

Physical dangers
The gas is heavier than air.

Chemical dangers
The substance is a strong oxidant. It reacts with combustible and reducing materials. This generates fire and explosion hazard.

Formula: O₂
Molecular mass: 32.0
Boiling point: -183°C
Melting point: -218.4°C
Solubility in water, ml/100ml at 20°C: 3.1
Relative vapour density (air = 1): 1.1
Octanol/water partition coefficient as log Pow: 0.65

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation. 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.	Inhalation risk Effects of long-term or repeated exposure Repeated or prolonged inhalation of high concentrations may cause effects on the lungs.

EXPOSURE & HEALTH EFFECTS

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

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.

Inhalation risk

Effects of long-term or repeated exposure
Repeated or prolonged inhalation of high concentrations may cause effects on the lungs.

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT

NOTES
Inhalation symptoms are characteristic of exposure to extremely high concentrations only. See also ICSC0880 Oxygen refrigerated liquid (cryogenic liquid).

ADDITIONAL INFORMATION

EC Classification
Symbol: O; R: 8; S: (2)-17

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