NIOSH Pocket Guide to Chemical Hazards

Graphite (natural) CAS 7782-42-5
C RTECS MD9659600
Synonyms & Trade Names
Black lead, Mineral carbon, Plumbago, Silver graphite, Stove black [Note: Also see specific listing for Graphite (synthetic).]
DOT ID & Guide
Exposure
Limits
NIOSH REL: TWA 2.5 mg/m3 (resp)
OSHA PEL�: TWA 15 mppcf
IDLH 1250 mg/m3 Conversion
Physical Description
Steel gray to black, greasy feeling, odorless solid.
MW: 12.0
BP: Sublimes
MLT: 6602°F (Sublimes)
Sol: Insoluble
VP: 0 mmHg (approx)
IP: NA

Sp.Gr: 2.0-2.25
Fl.P: NA
UEL: NA
LEL: NA

Combustible Solid
Incompatibilities & Reactivities
Very strong oxidizers such as fluorine, chlorine trifluoride & potassium peroxide
Measurement Methods
NIOSH 0500, 0600
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

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
Exposure Routes inhalation, skin and/or eye contact
Symptoms Cough, dyspnea (breathing difficulty), black sputum, decreased pulmonary function, lung fibrosis
Target Organs respiratory system, cardiovascular system
See also: INTRODUCTION