Compound Formula Molecular Weight Appearance Melting Point Boiling Point Density Solubility in H2O Exact Mass Monoisotopic Mass
BaO
153.326
White to very pale yellow crystalline solid
1,923° C (3,493° F)
~2000 °C (3,632° F)
5720 kg/m-3
N/A
153.9 g/mo
153.900157 Da

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SECTION 1. IDENTIFICATION

Product Name: Barium Oxide

Product Number: All applicable American Elements product codes, e.g. BA-OX-02, BA-OX-03, BA-OX-04, BA-OX-05

CAS #: 1304-28-5

Relevant identified uses of the substance: Scientific research and development

Emergency telephone number:Domestic, North America: +1 800-424-9300International: +1 703-527-3887

SECTION 2. HAZARDS IDENTIFICATION

Classification of the substance or mixtureClassification according to Regulation (EC) No 1272/2008GHS07Acute Tox. 4 H302 Harmful if swallowed.Acute Tox. 4 H332 Harmful if inhaled.Classification according to Directive 67/548/EEC or Directive 1999/45/ECXn; HarmfulR20/22: Harmful by inhalation and if swallowed.Information concerning particular hazards for human and environment:N/AHazards not otherwise classifiedNo data availableLabel elementsLabelling according to Regulation (EC) No 1272/2008The substance is classified and labeled according to the CLP regulation.Hazard pictograms


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GHS07Signal wordWarningHazard statementsH302+H332 Harmful if swallowed or if inhaled.Precautionary statementsP261 Avoid breathing dust/fume/gas/mist/vapors/spray.P264 Wash thoroughly after handling.P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.P301+P312 IF SWALLOWED: Call a POISON CENTER/doctor/.../if you feel unwell.P312 Call a POISON CENTER/doctor/.../if you feel unwell.P501 Dispose of contents/container in accordance with local/regional/national/international regulations.WHMIS classificationD1B - Toxic material causing immediate and serious toxic effectsClassification systemHMIS ratings (scale 0-4)(Hazardous Materials Identification System) HEALTH FIRE REACTIVITY201Health (acute effects) = 2Flammability = 0Physical Hazard = 1Other hazardsResults of PBT and vPvB assessmentPBT:N/AvPvB:N/A

SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS

SubstancesCAS No. / Substance Name:1304-28-5 Barium oxideIdentification number(s):EC number:215-127-9Index number:056-002-00-7

SECTION 4. FIRST AID MEASURES

Description of first aid measuresIf inhaled:Supply patient with fresh air. If not breathing, provide artificial respiration. Keep patient warm.Seek immediate medical advice.In case of skin contact:Immediately wash with soap and water; rinse thoroughly.Seek immediate medical advice.In case of eye contact:Rinse opened eye for several minutes under running water. Consult a physician.If swallowed:Seek medical treatment.Information for doctorMost important symptoms and effects, both acute and delayedNo data availableIndication of any immediate medical attention and special treatment neededNo data available

SECTION 5. FIREFIGHTING MEASURES

Extinguishing mediaSuitable extinguishing agentsProduct is not flammable. Use fire-fighting measures that suit the surrounding fire.Special hazards arising from the substance or mixtureIf this product is involved in a fire, the following can be released:Barium oxideAdvice for firefightersProtective equipment:Wear self-contained respirator.Wear fully protective impervious suit.

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SECTION 6. ACCIDENTAL RELEASE MEASURES

Personal precautions, protective equipment and emergency proceduresUse personal protective equipment. Keep unprotected persons away.Ensure adequate ventilationEnvironmental precautions:Do not allow product to enter drains, sewage systems, or other water courses.Do not allow material to penetrate the ground or soil.Methods and materials for containment and cleanup:Dispose of contaminated material as waste according to section 13.Ensure adequate ventilation.Prevention of secondary hazards:No special measures required.Reference to other sectionsSee Section 7 for information on safe handlingSee Section 8 for information on personal protection equipment.See Section 13 for disposal information.

SECTION 7. HANDLING AND STORAGE

HandlingPrecautions for safe handlingKeep container tightly sealed.Store in cool, dry place in tightly closed containers.Ensure good ventilation at the workplace.Information about protection against explosions and fires:The product is not flammableConditions for safe storage, including any incompatibilitiesRequirements to be met by storerooms and receptacles:No special requirements.Information about storage in one common storage facility:Store away from oxidizing agents.Further information about storage conditions:Keep container tightly sealed.Store in cool, dry conditions in well-sealed containers.Specific end use(s)No data available

SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTION

Additional information about design of technical systems:Properly operating chemical fume hood designed for hazardous chemicals and having an average face velocity of at least 100 feet per minute.Control parametersComponents with limit values that require monitoring at the workplace:1304-28-5 Barium oxide (100.0%)PEL (USA) Long-term value: 0.5 mg/m3as BaREL (USA) Long-term value: 0.5 mg/m3as BaTLV (USA) Long-term value: 0.5 mg/m3as BaEL (Canada) Long-term value: 0.5 mg/m3as BaAdditional information:No dataExposure controlsPersonal protective equipmentFollow typical protective and hygienic practices for handling chemicals.Keep away from foodstuffs, beverages and feed.Remove all soiled and contaminated clothing immediately.Wash hands before breaks and at the end of work.Maintain an ergonomically appropriate working environment.Breathing equipment:Use suitable respirator when high concentrations are present.Protection of hands:Impervious glovesInspect gloves prior to use.Suitability of gloves should be determined both by material and quality, the latter of which may vary by manufacturer.Penetration time of glove material (in minutes)No data availableEye protection:Safety glassesBody protection:Protective work clothing.

SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES

Information on basic physical and chemical propertiesAppearance:Form: Powder or solid in various formsColor: WhiteOdor: No data availableOdor threshold: No data available.pH: N/AMelting point/Melting range: 1923 °C (3493 °F)Boiling point/Boiling range: No data availableSublimation temperature / start: No data availableFlammability (solid, gas)No data available.Ignition temperature: No data availableDecomposition temperature: No data availableAutoignition: No data available.Danger of explosion: No data available.Explosion limits:Lower: No data availableUpper: No data availableVapor pressure: N/ADensity at 20 °C (68 °F): 5.7 g/cm3 (47.567 lbs/gal)Relative densityNo data available.Vapor densityN/AEvaporation rateN/ASolubility in Water (H2O): InsolublePartition coefficient (n-octanol/water): No data available.Viscosity:Dynamic: N/AKinematic: N/AOther informationNo data available

SECTION 10. STABILITY AND REACTIVITY

ReactivityNo data availableChemical stabilityStable under recommended storage conditions.Thermal decomposition / conditions to be avoided:Decomposition will not occur if used and stored according to specifications.Possibility of hazardous reactionsReacts with strong oxidizing agentsConditions to avoidNo data availableIncompatible materials:Oxidizing agentsHazardous decomposition products:Barium oxide

SECTION 11. TOXICOLOGICAL INFORMATION

Information on toxicological effectsAcute toxicity:Harmful if inhaled.Harmful if swallowed.The Registry of Toxic Effects of Chemical Substances (RTECS) contains acute toxicitydata for this substance.LD/LC50 values that are relevant for classification:No dataSkin irritation or corrosion:May cause irritationEye irritation or corrosion:May cause irritationSensitization:No sensitizing effects known.Germ cell mutagenicity:No effects known.Carcinogenicity:EPA-D: Not classifiable as to human carcinogenicity: inadequate human and animal evidence of carcinogenicity or no data are available.ACGIH A4: Not classifiable as a human carcinogen: Inadequate data on which to classify the agent in terms of its carcinogenicity in humans and/or animals.Reproductive toxicity:No effects known.Specific target organ system toxicity - repeated exposure:No effects known.Specific target organ system toxicity - single exposure:No effects known.Aspiration hazard:No effects known.Subacute to chronic toxicity:No effects known.Additional toxicological information:To the best of our knowledge the acute and chronic toxicity of this substance is not fully known.

SECTION 12. ECOLOGICAL INFORMATION

ToxicityAquatic toxicity:No data availablePersistence and degradabilityNo data availableBioaccumulative potentialNo data availableMobility in soilNo data availableAdditional ecological information:Do not allow undiluted product or large quantities to reach groundwater, water courses, or sewage systems.Avoid transfer into the environment.Results of PBT and vPvB assessmentPBT:N/AvPvB:N/AOther adverse effectsNo data available

SECTION 13. DISPOSAL CONSIDERATIONS

Waste treatment methodsRecommendationConsult official regulations to ensure proper disposal.Uncleaned packagings:Recommendation:Disposal must be made according to official regulations.

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SECTION 14. TRANSPORT INFORMATION

UN-NumberDOT, IMDG, IATAUN1884UN proper shipping nameDOTBarium oxideIMDG, IATABARIUM OXIDETransport hazard class(es)DOTClass6.1 Toxic substances.Label6.1Class6.1 (T5) Toxic substancesLabel6.1IMDG, IATAClass6.1 Toxic substances.Label6.1Packing groupDOT, IMDG, IATAIIIEnvironmental hazards:N/ASpecial precautions for userWarning: Toxic substancesEMS Number: F-A,S-ATransport in bulk according to Annex II of MARPOL73/78 and the IBC CodeN/ATransport/Additional information: DOTMarine Pollutant (DOT): NoUN "Model Regulation":UN1884, Barium oxide, 6.1, III

SECTION 15. REGULATORY INFORMATION

Safety, health and environmental regulations/legislation specific for the substance or mixtureNational regulationsAll components of this product are listed in the U.S. Environmental Protection Agency Toxic Substances Control Act Chemical substance Inventory.All components of this product are listed on the Canadian Domestic Substances List (DSL).SARA Section 313 (specific toxic chemical listings)1304-28-5 Barium oxideCalifornia Proposition 65Prop 65 - Chemicals known to cause cancerSubstance is not listed.Prop 65 - Developmental toxicitySubstance is not listed.Prop 65 - Developmental toxicity, femaleSubstance is not listed.Prop 65 - Developmental toxicity, maleSubstance is not listed.Information about limitation of use:For use only by technically qualified individuals.Other regulations, limitations and prohibitive regulationsSubstance of Very High Concern (SVHC) according to the REACH Regulations (EC) No. 1907/2006.Substance is not listed.The conditions of restrictions according to Article 67 and Annex XVII of the Regulation (EC) No 1907/2006 (REACH) for the manufacturing, placing on themarket and use must be observed.Substance is not listed.Annex XIV of the REACH Regulations (requiring Authorisation for use)Substance is not listed.REACH - Pre-registered substancesSubstance is listed.Chemical safety assessment:A Chemical Safety Assessment has not been carried out.

SECTION 16. OTHER INFORMATION