# NIOSH Pocket Guide to Chemical Hazards
Carbon black | CAS 1333-86-4
C | RTECS FF5800000
Synonyms & Trade Names Acetylene black, Channel black, Furnace black, Lamp black, Thermal black | DOT ID & Guide
Exposure Limits | NIOSH REL: TWA 3.5 mg/m3 Ca TWA 0.1 mg PAHs/m3 [Carbon black in presence of polycyclic aromatic hydrocarbons (PAHs)] See Appendix A See Appendix C
OSHA PEL: TWA 3.5 mg/m3
IDLH 1750 mg/m3 | Conversion
Physical Description Black, odorless solid.
MW: 12.0 | BP: Sublimes | MLT: Sublimes | Sol: Insoluble
VP: 0 mmHg (approx) | IP: NA |  | Sp.Gr: 1.8-2.1
Fl.P: NA | UEL: NA | LEL: NA |
Combustible Solid that may contain flammable hydrocarbons.
Incompatibilities & Reactivities Strong oxidizers such as chlorates, bromates & nitrates
Measurement Methods NIOSH 5000; OSHA ID196
Personal Protection & Sanitation Skin: No recommendation Eyes: Prevent eye contact Wash skin: Daily Remove: No recommendation Change: No recommendation | First Aid (See procedures) Eye: Irrigate promptly Breathing: Fresh air
Respirator Recommendations NIOSH/OSHA Up to 17.5 mg/m3: (APF = 5) Any dust and mist respirator Up to 35 mg/m3: (APF = 10) Any dust and mist respirator except single-use and quarter-mask respirators/(APF = 10) Any supplied-air respirator Up to 87.5 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode/(APF = 25) Any powered, air-purifying respirator with a dust and mist filter Up to 175 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 self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Up to 1750 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 In presence of polycyclicaromatic hydrocarbons: NIOSH At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration: (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; irritation eyes; in presence of polycyclic aromatic hydrocarbons: [potential occupational carcinogen]
Target Organs respiratory system, eyes Cancer Site [lymphatic cancer (in presence of PAHs)]
See also: INTRODUCTION