ICSC 0381 - BARIUM PEROXIDE

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

BARIUM PEROXIDE

ICSC: 0381
_{October 1999}

Barium dioxide
Barium superoxide

CAS No: 1304-29-6
RTECS No: CR0175000
UN No: 1449
EC No: 056-001-00-1

BaO₂
Molecular mass: 169.3

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible but enhances combustion of other substances.	NO contact with combustibles reducing agents and acid(s).	In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION	Risk of fire and explosion on contact with combustible substances and reducing agents.

EXPOSURE		PREVENT DISPERSION OF DUST! STRICT HYGIENE!
Inhalation	Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. (See Ingestion).	Local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Artificial respiration if indicated. Refer for medical attention.
Skin	Redness. Skin burns. Pain.	Protective gloves. Protective clothing.	First rinse with plenty of water, then remove contaminated clothes and rinse again.
Eyes	Redness. Pain. Blurred vision.	Safety goggles, or face shield, or eye protection in combination with breathing protection if powder.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	Abdominal pain. Vomiting. Diarrhoea.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Sweep spilled substance into containers, then remove to safe place. Do NOT absorb in saw-dust or other combustible absorbents. Do NOT let this chemical enter the environment. (Extra personal protection: P2 filter respirator for harmful particles).	EU classification O Symbol Xn Symbol R: 8-20/22 S: (2-)13-27 UN classification UN Hazard Class: 5.1 UN Subsidiary Risks: 6.1 UN Pack Group: II	Do not transport with food and feedstuffs.

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-51G12 NFPA Code: H1; F0; R0; ox	Separated from combustible and reducing substances, food and feedstuffs. Dry.

IMPORTANT DATA

Physical State; Appearance
WHITE OR GREY TO WHITE POWDER.

Chemical dangers
The substance decomposes on heating and on contact with water or acids producing oxygen and hydrogen peroxide, which increases fire hazard. The substance is a strong oxidant and reacts violently with combustible and reducing materials.

Occupational exposure limits
TLV: (as Ba) 0.5 mg/m³ as TWA A4 (not classifiable as a human carcinogen); (ACGIH 2005).
MAK: 0.5 mg/m³ (Inhalable fraction) Peak limitation category: II(2) (DFG 2005).

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

Effects of short-term exposure
The substance irritates the eyes, the skin and the respiratory tract. The substance may cause effects on the nervous system. Exposure could cause hypokalaemia, resulting in cardiac disorders and muscular disorders.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Decomposes below boiling point at 800°C Melting point: 450°C Relative density (water = 1): 5.0 Solubility in water: poor	The substance is harmful to aquatic organisms.

NOTES

Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Rinse contaminated clothes (fire hazard) with plenty of water.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2006

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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 AS. Approved by GS. Last update: 29.01.2008