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| Graphite (natural) | CAS 7782-42-5 | ||
| C | RTECS MD9659600 | ||
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Synonyms & Trade Names Black lead, Mineral carbon, Plumbago, Silver graphite, Stove black [Note: Also see specific listing for Graphite (synthetic).] |
DOT ID & Guide |
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Exposure Limits |
NIOSH REL: TWA 2.5 mg/m3 (resp) | ||
| OSHA PEL�: TWA 15 mppcf | |||
| IDLH 1250 mg/m3 | Conversion | ||
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Physical Description Steel gray to black, greasy feeling, odorless solid. |
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MW: 12.0 |
BP: Sublimes |
MLT: 6602°F (Sublimes) |
Sol: Insoluble |
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VP: 0 mmHg (approx) |
IP: NA |
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Sp.Gr: 2.0-2.25 |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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| Combustible Solid | |||
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Incompatibilities & Reactivities Very strong oxidizers such as fluorine, chlorine trifluoride & potassium peroxide |
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Measurement Methods NIOSH 0500, 0600 |
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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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Respirator Recommendations
NIOSH Up to 12.5 mg/m3: (APF = 5) Any dust respirator Up to 25 mg/m3: (APF = 10) Any dust respirator except single-use and quarter-mask respirators/(APF = 10) Any supplied-air respirator Up to 62.5 mg/m3: (APF = 25) Any powered, air-purifying respirator with a dust filter/(APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 125 mg/m3: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and 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 self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Up to 1250 mg/m3: (APF = 2000) Any supplied-air respirator that has a full facepiece and is 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 Cough, dyspnea (breathing difficulty), black sputum, decreased pulmonary function, lung fibrosis | |
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Target Organs
respiratory system, cardiovascular system |
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| See also: INTRODUCTION |