# NIOSH Pocket Guide to Chemical Hazards
Nickel metal and other compounds (as Ni) | CAS 7440-02-0 (Metal)
Ni (Metal) | RTECS QR5950000 (Metal)
Synonyms & Trade Names Nickel metal: Elemental nickel, Nickel catalyst Synonyms of other nickel compounds vary depending upon the specific compound. | DOT ID & Guide
Exposure Limits | NIOSH REL*: Ca TWA 0.015 mg/m3 See Appendix A [*Note: The REL does not apply to Nickel carbonyl.]
OSHA PEL*†: TWA 1 mg/m3 [*Note: The PEL does not apply to Nickel carbonyl.]
IDLH Ca [10 mg/m3 (as Ni)] | Conversion
Physical Description Metal: Lustrous, silvery, odorless solid.
MW: 58.7 | BP: 5139°F | MLT: 2831°F | Sol: Insoluble
VP: 0 mmHg (approx) | IP: NA |  | Sp.Gr: 8.90 (Metal)
Fl.P: NA | UEL: NA | LEL: NA |
Metal: Combustible Solid; nickel sponge catalyst may ignite SPONTANEOUSLY in air.
Incompatibilities & Reactivities Strong acids, sulfur, selenium, wood & other combustibles, nickel nitrate
Measurement Methods NIOSH 7300; OSHA ID121, ID125G
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: No recommendation Wash skin: When contaminated/Daily Remove: When wet or contaminated Change: Daily | First Aid (See procedures) Skin: Water flush immediately Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations 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, ingestion, skin and/or eye contact
Symptoms Sensitization dermatitis, allergic asthma, pneumonitis; [potential occupational carcinogen]
Target Organs Nasal cavities, lungs, skin Cancer Site [lung and nasal cancer]
See also: INTRODUCTION