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| Talc (containing no asbestos and less than 1% quartz) | CAS 14807-96-6 | ||
| Mg3Si4O10(OH)2 | RTECS WW2710000 | ||
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Synonyms & Trade Names Hydrous magnesium silicate, Steatite talc |
DOT ID & Guide |
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Exposure Limits |
NIOSH REL: TWA 2 mg/m3 (resp) | ||
| OSHA PEL†: TWA 20 mppcf | |||
| IDLH 1000 mg/m3 See: 14807966 | Conversion | ||
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Physical Description Odorless, white powder. |
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MW: Varies |
BP: ? |
MLT: 1652 to 1832°F |
Sol: Insoluble |
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VP: 0 mmHg (approx) |
IP: NA |
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Sp.Gr: 2.70-2.80 |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Solid | |||
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Incompatibilities & Reactivities None reported |
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Measurement Methods NIOSH P&CAM355; (III) See: NMAM or OSHA Methods |
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Personal Protection & Sanitation Skin: No recommendation Eyes: No recommendation Wash skin: No recommendation Remove: No recommendation Change: No recommendation |
First Aid (See procedures) Eye: Irrigate immediately Breathing: Fresh air |
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Important additional information about respirator selection Respirator Recommendations NIOSH Up to 10 mg/m3: (APF = 5) Any dust and mist respirator Up to 20 mg/m3: (APF = 10) Any dust and mist respirator except single-use and quarter-mask respirators/(APF = 10) Any supplied-air respirator Up to 50 mg/m3: (APF = 25) Any powered, air-purifying respirator with a dust and mist filter/(APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 100 mg/m3: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/(APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode/(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and a high-efficiency particulate filter/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Up to 1000 mg/m3: (APF = 1000) Any supplied-air respirator operated in a pressure-demand or other positive-pressure mode Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, skin and/or eye contact | |
| Symptoms Fibrotic pneumoconiosis; irritation eyes | |
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Target Organs
Eyes, respiratory system, cardiovascular system |
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| See also: INTRODUCTION See ICSC CARD: 0329 See MEDICAL TESTS: 0207 |