Carbon black

Synonyms & Trade Names
Acetylene black, Channel black, Furnace black, Lamp black, Thermal black
CAS No.
1333-86-4
RTECS No.
DOT ID & Guide
Formula
C
Conversion
IDLH
1750 mg/m3
See: 1333864
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
Measurement Methods
NIOSH 5000;
OSHA ID196
See: NMAM or OSHA Methods
Physical Description
Black, odorless solid.
Molecular Weight
12.0
Boiling Point
Sublimes
Melting Point
Sublimes
Solubility
Insoluble
Vapor Pressure
0 mmHg (approx)
Ionization Potential
NA
Specific Gravity
1.8-2.1
Flash Point
NA
Upper Exposive Limit
NA
Lower Explosive Limit
NA
Combustible Solid that may contain flammable hydrocarbons.
Incompatibilities & Reactivities
Strong oxidizers such as chlorates, bromates & nitrates
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)]
Personal Protection/Sanitation
(See protection codes)
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 quarter-mask respirator.
Click here for information on selection of N, R, or P filters.

Up to 35 mg/m3:
(APF = 10) Any particulate respirator equipped with an N95, R95, or P95 filter (including N95, R95, and P95 filtering facepieces) except quarter-mask respirators. The following filters may also be used: N99, R99, P99, N100, R100, P100.
Click here for information on selection of N, R, or P filters.
(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 high-efficiency particulate filter.

Up to 175 mg/m3:
(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
(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 an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus

In presence of polycyclic aromatic 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 an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0471   MEDICAL TESTS: 0038
Page last reviewed: November 29, 2018