Barium sulfate
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Synonyms & Trade Names
Artificial barite, Barite, Barium salt of sulfuric acid, Barytes (natural)Exposure Limits
NIOSH REL
TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)OSHA PEL
TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp) See Appendix GPhysical Description
White or yellowish, odorless powder.Molecular Weight
233.4Boiling Point
2912°F (Decomposes)Melting Point
2876°FSolubility
(64°F): 0.0002%Vapor Pressure
0 mmHg (approx)Ionization Potential
NASpecific Gravity
4.25-4.5Flash Point
NAUpper Exposive Limit
NALower Explosive Limit
NA
Noncombustible Solid
Incompatibilities & Reactivities
Phosphorus, aluminum [Note: Aluminum in the presence of heat can cause an explosion.]Exposure Routes
inhalation, skin and/or eye contactSymptoms
irritation eyes, nose, upper respiratory system; benign pneumoconiosis (baritosis)Target Organs
Eyes, respiratory systemPersonal Protection/Sanitation
(See protection codes)Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:Daily
Remove:No recommendation
Change:No recommendation
Provide:Eyewash, Quick drench
First Aid
(See procedures)Eye:Irrigate immediately
Skin:Soap wash
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations
Not available.
- Page last reviewed:April 11, 2016
- Page last updated:April 11, 2016
- Content source:
- National Institute for Occupational Safety and Health (NIOSH) Education and Information Division