Barium sulfate |
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 REL: TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)
OSHA PEL†: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp) |
Measurement Methods
NIOSH 0500 , 0600
See: NMAM or OSHA Methods |
Physical Description White or yellowish, odorless powder. |
MW: 233.4 |
BP: 2912°F (Decomposes) |
MLT: 2876°F |
Sol(64°F): 0.0002% |
VP: 0 mmHg (approx) |
IP: NA |
Sp.Gr: 4.25-4.5 |
Fl.P: NA |
UEL: NA |
LEL: 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 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 See ICSC CARD: 0827
|
