CAS 11099-02-8PubChem CID 14805
Nickel trioxide
- IUPAC name
- oxonickel
- Molecular formula
- NiO
- Molecular weight
- 74.693 g/mol
- Exact mass
- 73.930256 Da
- Topological polar surface area
- 17.1 Ų
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 1
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
RefChem:1092359NICKEL OXIDENickelous oxideBunseniteNIOMononickel oxideBlack nickel oxideNickel oxide sinter 75
16 more reported names
CCRIS 431HSDB 1664Nickel Oxide NanopowderEINECS 215-215-7nickel(II) oxide, blackUNII-C3574QBZ3YCI 77777Nickel(II) oxide (1:1)oxo-nickelC.I. 77777nickel hydride oxideNICKEL MONOOXIDENickel(II) oxide, CPNickel(II) oxide, greenEC 215-215-7Nickel (II) Oxide, black
Evidence from additional scientific databases
NIH PubChem PUG-View
Exact identifier match14805
Attributed physical-property, hazard, environmental and use annotations.
- Physical Description: Dry Powder Source: EPA Chemical Data Reporting (CDR)
- Physical Description: Black powder; Insoluble in water; [BDH Laboratory Supplies MSDS] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Carcinogen Classification: 1, carcinogenic to humans. (L135) Source: Toxin and Toxin Target Database (T3DB)
- Exposure Routes: Inhalation (L41) ; oral (L41) ; dermal (L41) Source: Toxin and Toxin Target Database (T3DB)
- Exposure Routes: Oral (L41) ; inhalation (L41) ; dermal (L41) Source: Toxin and Toxin Target Database (T3DB)
- Signal: Danger Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
- GHS Hazard Statements: H317: May cause an allergic skin reaction [Warning Sensitization, Skin]; H350i: May cause cancer by inhalation [Danger Carcinogenicity]; H372 **: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]; H413: May cause long lasting harmful effects to aquatic life [Hazardous to the aquatic environment, long-term hazard] Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
- Precautionary Statement Codes: P203, P260, P261, P264, P270, P272, P273, P280, P302+P352, P318, P319, P321, P333+P317, P362+P364, P405, and P501 (click each P-code to see the statement) Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
- Signal: Danger Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H317 (100%): May cause an allergic skin reaction [Warning Sensitization, Skin]; H350 (98.9%): May cause cancer [Danger Carcinogenicity]; H372 (99.4%): Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]; H413 (99.4%): May cause long lasting harmful effects to aquatic life [Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P203, P260, P261, P264, P270, P272, P273, P280, P302+P352, P318, P319, P321, P333+P317, P362+P364, P405, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 179 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- Signal: Danger Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- GHS Hazard Statements: H317: May cause an allergic skin reaction [Warning Sensitization, Skin]; H350i: May cause cancer by inhalation [Danger Carcinogenicity]; H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure] Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Precautionary Statement Codes: P203, P260, P261, P264, P270, P272, P280, P302+P352, P318, P319, P321, P333+P317, P362+P364, P405, and P501 (click each P-code to see the statement) Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Health Effects: The most common harmful health effect of nickel in humans is an allergic reaction. This usually manifests as a skin rash, although some people experience asthma attacks. Long term inhahation of nickel causes chronic bronchitis and reduced lung function, as well as damage to the naval cavity. Ingestion of excess nickel results in damage to the stomach, blood, liver, kidneys, and immune system, as well as having adverse effects on reproduction and development. (L41) Source: Toxin and Toxin Target Database (T3DB)
- Toxicity Summary: Nickel is known to substitute for other essential elements in certain enzmes, such as calcineurin. It is genotoxic, and some nickel compounds have been shown to promote cell proliferation. Nickel has a high affinity for chromatin proteins, particularly histones and protamines. The complexing of nickel ions with heterochromatin results in a number of alterations including condensation, DNA hypermethylation, gene silencing, and inhibition of histone acetylation, which have been shown to disturb gene expression. Nickel has also been shown to alter several transcription factors, including hypoxia-inducible transcription factor, activating transcription factor, and NF-KB transcription factor. There is also evidence that nickel ions inhibit DNA repair, either by directly inhibiting DNA repair enzymes or competing with zinc ions for binding to zinc-finger DNA binding proteins, resulting in structural changes in DNA that prevent repair enzymes from binding. Nickel ions can also complex with a number of cellular ligands including amino acids, peptides, and proteins resulting in the generation of oxygen radicals, which induce base damage, DNA strand breaks, and DNA protein crosslinks. (L41, Source: Toxin and Toxin Target Database (T3DB)
- Consumer Uses: Other Source: EPA Chemical Data Reporting (CDR)
- Industry Uses: Other Source: EPA Chemical Data Reporting (CDR)
- Uses: Nickel oxide is used in the production of alloys. It is also used in the ceramic industry to make frits, ferrites, and porcelain glazes, and is a component of the nickel-iron battery and fuel cells. (L46) Source: Toxin and Toxin Target Database (T3DB)
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.