Barium sulfate
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CAS
7727-43-7
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BaSO4
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RTECS
CR0600000
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Synonyms & Trade Names
Artificial barite, Barite, Barium salt of sulfuric acid, Barytes (natural)
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DOT ID & Guide
1564 / 154 (barium compound, n.o.s.)
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Exposure
Limits
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NIOSH REL: TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)
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OSHA PEL†: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
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IDLH
N.D.
See: IDLH INDEX
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Conversion
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Physical Description
White or yellowish, odorless powder.
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MW: 233.4
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BP: 2912°F (Decomposes)
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MLT: 2876°F
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Sol(64°F): 0.0002%
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VP: 0 mmHg (approx)
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IP: NA
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Sp.Gr: 4.25-4.5
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Fl.P: NA
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UEL: NA
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LEL: NA
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Noncombustible Solid
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Incompatibilities & Reactivities
Phosphorus, aluminum [Note: Aluminum in the presence of heat can cause an explosion.]
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Measurement Methods
NIOSH 0500, 0600
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: Daily
Remove: No recommendation
Change: No recommendation
Provide: Eyewash, Quick drench
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
Not available.
Important additional information about respirator selection
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Exposure Routes
inhalation, skin and/or eye contact
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Symptoms
Irritation eyes, nose, upper respiratory system; benign pneumoconiosis (baritosis)
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Target Organs
Eyes, respiratory system
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See also: INTRODUCTION
See ICSC CARD: 0827 See MEDICAL TESTS: 0021 |
