Basic information
- CAS
12645-11-3- Standard SMILES
[N]#[Cr]- InChIKey
CXOWYMLTGOFURZ-UHFFFAOYSA-N- Molecular formula
- CrN
- Average molar mass
- 66.003 g/mol
- Monoisotopic mass
- 65.943579
Overview
Chromium nitride is a chemical compound of chromium. Chromium is a chemical element which has the symbol Cr and atomic number 24. It is found naturally occuring in rocks, animals, plants, and soil, and is usually mined as chromite ore. Chromium is most toxic in its +6 oxidation state (chromium(VI)) due to its greater ability to enter cells and higher redox potential. Trivalent chromium (chromium(III)) however, is biologically necessary for sugar and lipid metabolism in humans. (L17)
Names & identifiers
- Preferred name
- Chromium nitride
- IUPAC
- azanylidynechromium
- English name
- CHROMIUM NITRIDE
- Molecular formula
- CrN
- Molecular weight
- 66
Names & synonyms
Chromium nitrideChromium nitride (CrN)Chromium mononitrideChromium(III) nitridechromiumylidyneamineUNII-W46I1HZ91FEINECS 246-016-3NSC 132056W46I1HZ91FDTXSID001014424NSC-132056RefChem:125886
Show more names
CrNNsc132056Chromium nitrogenDICHROMIUM NITRIDEDichromium nitrogenNitridochromium 99%Nitrilochromium(III)
DTXCID401437016246-016-3azanylidynechromium24094-93-7nitridochromiumTetrachromium nitrideCHROMIUM NITRIDE, CrNSCHEMBL65590
Database identifiers
- CAS
12645-11-3、24094-93-7- PubChem CID
- 90362
- DTXSID
DTXSID001014424- EC Number
- 246-016-3
- Nikkaji
- J96.015B
Properties
Computed structural properties
- Topological polar surface area
- 23.8 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 0
- Heavy atoms
- 2
- Formal charge
- 0
- Complexity
- 10
Experimental & physicochemical properties
Chemical ClassesMetals -> Chromium Compounds, Inorganic
SpringerMaterials Properties
crystal structure
crystal structure
Food Contact Substances
FCS -> FDA Cumulative Estimated Daily Intake (CEDI)
FCS -> FDA Inventory of Effective Food Contact Substance (FCS) Notifications
FCS -> FDA Inventory of Effective Food Contact Substance (FCS) Notifications
FCS -> FDA Inventory of Effective Food Contact Substance (FCS) Notifications
FCS -> FDA Inventory of Effective Food Contact Substance (FCS) Notifications
FCS -> FDA Inventory of Effective Food Contact Substance (FCS) Notifications
Physical DescriptionDark odorless powder; [MSDSonline]
Physicochemical properties
- Melting point
- 1282 ℃ · decomposes at 1282℃ [COT88]
- Density
- 6.14 · 6.14
- form
- gray cubic crystals
- color
- gray cubic crystals, crystalline
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 100% (3 of 3) of all reports.
Not Classified
Aggregated GHS information provided per 3 reports by companies from 1 notifications to the ECHA C&L Inventory.
Hazard information
Hazards SummaryAn irritant; May cause skin and respiratory sensitization after prolonged contact; [MSDSonline] See Cr(III) compounds in Chromium. See NITRIDES.
Hazard Classes and CategoriesNot Classified
Safety & protection
Threshold Limit Values (TLV)0.003 [mg/m3], as Cr(III), inhalable particulate matter
Permissible Exposure Limit (PEL)0.5 [mg/m3]
Toxicology
TreatmentThere is no know antidote for chromium poisoning. Exposure is usually handled with symptomatic treatment. (L16)
Health EffectsChromium in its trivalent state is not very toxic. It may be oxidized to hexavalent chromium, a known carcinogen. Hexavalent chromium has also been shown to affect reproduction and development. (A12)
Adverse EffectsACGIH Carcinogen - Not Classifiable.
Chemistry & industry
Pharmacology
Metabolism/Metabolites
Chromium is absorbed from oral, inhalation, or dermal exposure and distributes to nearly all tissues, with the highest concentrations found in kidney and liver. Bone is also a major storage site and may contribute to long-term retention. Hexavalent chromium's similarity to sulfate and chromate allow it to be transported into cells via sulfate transport mechanisms. Inside the cell, hexavalent chromium is reduced first to pentavalent chromium, then to trivalent chromium by many substances including ascorbate, glutathione, and nicotinamide adenine dinucleotide. Chromium is almost entirely excreted with the urine. (A12, L16)
Uses & manufacturing
General Manufacturing InformationChromium nitride (CrN): ACTIVE
Applications
UsesChromium Nitride (CrN) is a silver-gray colored coating that resists adhesive wear, corrosion, and oxidization. It is used for machining copper alloys, bronze, aluminum bronze, nickel silver titanium, and titanium alloys.
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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