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Barium sulfate																				Related Pages
Synonyms & Trade Names
			Artificial barite, Barite, Barium salt of sulfuric acid, Barytes (natural)
CAS No.
			7727-43-7
	RTECS No.
			CR0600000
	DOT ID & Guide
			1564 154(barium compound, n.o.s.)

FormulaBaSO4
	Conversion
	IDLH
			N.D.See: IDLH INDEX

Exposure Limits
			NIOSH RELTWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)
					OSHA PEL TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp) See Appendix G
	Measurement Methods
			**NIOSH** 0500 , 0600
					
					See: NMAM or OSHA Methods
										
Physical Description
			White or yellowish, odorless powder.													
										
Molecular Weight233.4	
	Boiling Point2912°F (Decomposes)
	Melting Point2876°F
	Solubility(64°F): 0.0002%
	Vapor Pressure0 mmHg (approx)
	Ionization PotentialNA											
Specific Gravity4.25-4.5	
	Flash PointNA
	Upper Explosive LimitNA
	Lower Explosive LimitNA
Noncombustible Solid
Incompatibilities & Reactivities
			Phosphorus, aluminum
					[Note: Aluminum in the presence of heat can cause an explosion.]
Exposure Routes
			inhalation, skin and/or eye contact
Symptoms
			irritation eyes, nose, upper respiratory system; benign pneumoconiosis (baritosis)
Target Organs
			Eyes, respiratory system
										
Personal 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.
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0827

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
First Aid Procedures Follow NIOSH Facebook
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