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CAS Number: 1304-28-5
Product Catalog

93-5651
Barium › Barium oxide (99.5%-Ba)
CAS Number: 1304-28-5
MDL Number: MFCD00003453
Molecular Formula: BaO
Molecular Weight: 153.33
Chemical Formula: BaO
Color and Form: -100 mesh off-white to light-gray pwdr.
Note:  

Stability: moisture sensitive

Safety: Hazardous

Physical Characteristics: melting point 1923°C, density 5.72

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Download This MSDS
SECTION 1: Product Identification
Chemical Name: Barium oxide (99.5%-Ba)
Product Number: 93-5651
CAS Registry Number: 1304-28-5
Formula: BaO
EINECS Number: 215-127-9
Chemical Family: metal oxide
Synonym: Barium monoxide, Baryta
SECTION 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title Compound 1304-28-5 100 0.5mg/m3 0.5mg/m3
SECTION 3: Hazards Identification
Emergency Overview: Harmful by inhalation and if swallowed. Irritating to skin, eyes and respiratory tract.
Primary Routes of Exposure: Ingestion, inhalation, skin and eyes
Eye Contact: Causes severe irritation of the eyes resulting in redness and watering.
Skin Contact: Prolonged contact with moist skin causes irritation.
Inhalation: Harmful by inhalation. Irritating to nose, and respiratory tract. May cause difficulty in breathing.
Ingestion: Harmful if swallowed. Soluble barium may cause vomiting, irregular heartbeat, pain, tremors, convulsions and cardiac arrest.
Acute Health Effects: Harmful by inhalation and if swallowed. Irritating to skin, eyes and respiratory tract. Barium may cause difficulty in breathing, vomiting, tremors, and death.
Chronic Health Effects: Repeated ingestion of small amounts may cause loss of appetite and weight loss
NTP: No
IARC: No
OSHA: No
SECTION 4: First Aid Measures
Eye Exposure: Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention.
Skin Exposure: Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if irritation persists.
Inhalation: Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Ingestion: Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Sodium sulfate antidote may be administered by medical personnel.
SECTION 5: Fire Fighting Measures
Flash Point: not applicable
Autoignition Temperature: none
Explosion Limits: none
Extinguishing Medium: None. Material is non-flammable.
Special Fire Fighting Procedures: No special fire-fighting procedures. The material is non-flammable.
Hazardous Combustion and Decomposion Products: No hazardous combustion or decomposition products.
Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.
SECTION 6: Accidental Release Measures
Spill and Leak Procedures: Small spills can be mixed with vermiculite or sodium carbonate and swept up.
SECTION 7: Handling and Storage
Handling and Storage: Store in a tightly sealed container.
SECTION 8: Exposure Controls and Personal Protection
Eye Protection: Always wear approved safety glasses when handling a chemical substance in the laboratory.
Skin Protection: Wear appropriate chemical resistant gloves and protective clothing.
Ventilation: Material may form a fine dust. If possible, handle the material in an efficient fume hood.
Respirator: If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134.
Additional Protection: No additional protection required.
SECTION 9: Physical and Chemical Properties
Color and Form: -100 mesh off-white to light-gray pwdr.
Molecular Weight: 153.33
Melting Point: 1923°C
Boiling Point: no data
Vapor Pressure: no data
Specific Gravity: 5.72
Odor: none
Solubility in Water: soluble
SECTION 10: Stability and Reactivity
Stability: hygroscopic solid
Hazardous Polymerization: no hazardous polymerization
Conditions to Avoid: none
Incompatibility: strong mineral acids
Decomposition Products: none
SECTION 11: Toxicological Information
RTECS Data: Intraperitoneal (mouse); LD50:146 mg/kg. Subcutaneous (mouse); LD50:50 mg/kg.
Carcinogenic Effects: No data available
Mutagenic Effects: No data available
Tetratogenic Effects: No data available
SECTION 12: Ecological Information
Ecological Information: No information available
SECTION 13: Disposal Considerations
Disposal: Dispose of according to local, state and federal regulations.
SECTION 14: Transportation
Shipping Name (CFR): Barium oxide
Hazard Class (CFR): 6.1
Additional Hazard Class (CFR): NA
Packaging Group (CFR): III
UN ID Number (CFR): UN# 1884
Shipping Name (IATA): Barium oxide
Hazard Class (IATA): 6.1
Additional Hazard Class (IATA): NA
Packaging Group (IATA): III
UN ID Number (IATA): UN# 1884
SECTION 15: Regulatory Information
TSCA: Listed in the TSCA inventory.
SARA (Title 313): Title compound: See Category Code N040 for reporting.
Second Ingredient: none
Third Ingredient: none
SECTION 16: Other Information
Disclaimer: The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information.
Preparation Date: 3/20/2001
Revision Date: 12/16/2011

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