Basic information
- CAS
11104-61-3- Standard SMILES
[Co+2].[Co+3].[Co+3].[O-2].[O-2].[O-2].[O-2]- InChIKey
UBEWDCMIDFGDOO-UHFFFAOYSA-N- Molecular formula
- Co3O4
- Average molar mass
- 240.797 g/mol
- Monoisotopic mass
- 240.77924
Names & identifiers
- Preferred name
- Cobalt oxide
- IUPAC
- cobalt(2+);bis(cobalt(3+));tetrakis(oxygen(2-))
- English name
- Cobalt oxide
- Molecular formula
- CoO
- Molecular weight
- 0
Names & synonyms
Cobalt tetraoxideUSK772NS5611104-61-3234-334-5Co(3)O(4)Cobalt oxideCobaltum OxydatumDTXSID801014561RefChem:58007Tricobalt tetraoxideCobaltic-cobaltous oxidecobalt(2+);cobalt(3+);oxygen(2-)
Show more names
cobalt(2+),oxygen(2-)cobalt(2+),oxygen(2 oxygen(2-)
Cobalt oxide blackCOBALT (II,III) OXIDEoxocobalt; oxo(oxocobaltiooxy)cobaltEINECS 215-157-2Cobalt (II, III) oxideUNII-USK772NS56COBALT OXIDE [MART.]SCHEMBL5054762
Database identifiers
- CAS
11104-61-3、1308-06-1- PubChem CID
- 6432046
- UNII
- USK772NS56
- EC Number
- 215-157-2、234-334-5
Properties
Computed structural properties
- Topological polar surface area
- 4 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 7
- Formal charge
- 0
- Complexity
- 0
Experimental & physicochemical properties
Physical Description
Large Crystals; Dry Powder
Black or grey solid; [Merck Index] Black powder, insoluble in water; [MSDSonline]
Physicochemical properties
- Indirect Additives used in Food Contact Substances
- COBALT OXIDE
- FDA UNII
- 772 NS56 · USK772NS56
- EPA Substance Registry System
- Cobalt oxide (11104-61-3)
- TSCA
- TSCA listed
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 100% (7 of 7) of all reports.
Not Classified；Reported as not meeting GHS hazard criteria by 7 of 7 companies. For more detailed information, please visit ECHA C&L website.
Aggregated GHS information provided per 7 reports by companies from 1 notifications to the ECHA C&L Inventory.；Reported as not meeting GHS hazard criteria per 7 of 7 reports by companies.；There are 0 notifications provided by 0 of 7 reports by companies with hazard statement code(s).；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.
Danger
H317: May cause an allergic skin reaction [Warning Sensitization, Skin]；H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]；H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
Hazard information
Regulatory Information
Chemical: Cobalt oxide
Cobalt oxide is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Cobalt oxide are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 21-04-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/15110
Cobalt oxide: Does not have an individual approval but may be used under an appropriate group standard
Other Safety InformationIMAP assessments - Cobalt oxide: Human health tier II assessment
Hazards SummaryHarmful if swallowed; May cause skin sensitization; [MSDSonline] See Cobalt.
Chemistry & industry
Pharmacology
Metabolism/Metabolites
Cobalt is absorbed though the lungs, gastrointestinal tract, and skin. Since it is a component of the vitamin B12 (cyanocobalamin), it is distributed to most tissues of the body. It is transported in the blood, often bound to albumin, with the highest levels being found in the liver and kidney. Cobalt is excreted mainly in the urine and faeces. (L29)
Uses & manufacturing
Uses
Used in enamels, semiconductors, and grinding wheels; [Merck Index] When cobalt (II) oxide is heated at 400-500 deg C in an atmosphere of oxygen, the cobalt (II,III) oxide is formed. [Ullmann]
Semiconductor Manufacturing [Category: Industry]
Enameling [Category: Hobbies]
No data.
U.S. Production2023: 468,662 lb；2022: 296,710 lb；2021: 359,860 lb；2020: 366,399 lb
Consumer UsesOther
Industry UsesOther
General Manufacturing Information
Petroleum Refineries；Primary Metal Manufacturing
Cobalt oxide: ACTIVE
Applications
UsesCobalt oxide is used in the manufacture of paint pigments, ceramic glazes, and cobalt catalysts, etc.
Related reactions
6 records
Compound notes
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