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Nickel Oxide

CAS Number

1313-99-1

Synonym

Bunsenite; CI 77777; Green nickel oxide; Mononickel oxide; Nickel monoxide; Nickel(II) oxide; Nickelous oxide; Nickel(2+) oxide; Nickel protoxide; NiO; Oxonickel

Occurrence/Use

Component of rechargeable batteries and fuel cells; pigments for ceramic, glass, and glazes; propellant for car air bags; production of electronic thermally functionng ceramics; hydrogenation catalyst and precursor to nickel salts

Cancer Potency Information

Inhalation Unit Risk (μg/cubic meter)-1: 
2.6 E-4
Inhalation Slope Factor (mg/kg-day)-1: 
9.1 E-1
Oral Slope Factor (mg/kg-day)-1: 
9.1 E-1
Comments/References: 

OEHHA 2009. Air Toxics Hot Spots Program Technical Support Document for Cancer Potencies. Appendix B. Chemical-specific summaries of the information used to derive unit risk and cancer potency values. Updated 2011.

Listed as Nickel and nickel compounds.

Air

Acute RELs

Acute REL (μg/m3): 
0.2
Species: 
Mouse
Acute REL Toxicologic Endpoint: 
Depressed antibody response
Acute REL Target Organs: 
Immune system
Last Acute REL Revision: 
2012
Acute Reference Exposure Levels Comments: 

Inhalation concentrations as micrograms Ni/m3. OEHHA 2012. Nickel Reference Exposure Levels. Listed as Nickel (and compounds).

8-Hour RELs

8-Hour Inhalation REL (μg/m3): 
0.06
Last 8-Hour REL Revision: 
2012
8-Hour Reference Exposure Levels Comments: 

Inhalation concentrations as micrograms Ni/m3. OEHHA 2013. Technical Support Document for Noncancer RELs, Appendix D1. Updated July 2014. Listed as Nickel (and compounds).

Chronic REL

Chronic Inhalation REL (μg/m3): 
0.02 (inhalation); 11 μg/kg BW-day (oral)
Chronic Target Organs: 
Inhalation: Respiratory system. Oral: Development
Human Data: 
No
Last Chronic REL Revision: 
2012
Chronic Reference Exposure Levels Comments: 

Inhalation concentrations as micrograms Ni/m3; oral dose as micrograms Ni/kg-day. OEHHA 2012. Nickel Reference Exposure Levels. Nickel oxide listed separately for chronic RELs.

Proposition 65

Chemical Status

Cancer: 
Currently listed

Cancer

Listed as causing: 
Cancer
Date of Listing: 
10/01/1989
Basis for Listing: 
Labor Code

Comments

Listed as Nickel oxide.

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