ICSC 0138 - OXYGEN

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OXYGEN

ICSC: 0138
_{October 1999}

(cylinder)

CAS No: 7782-44-7
RTECS No: RS2060000
UN No: 1072
EC No: 008-001-00-8

O₂
Molecular mass: 32.0

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	PACKAGING & LABELLING
Ventilation.	O Symbol R: 8 S: (2-)17 UN Hazard Class: 2.2 UN Subsidiary Risks: 5.1

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-20S1072 or 20G1O	Fireproof. Separated from combustible and reducing substances. Cool.

IMPORTANT DATA
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. 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	ENVIRONMENTAL DATA
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

NOTES

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.

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