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Chromium difluoride
CAS number：10049-10-2 molecular formula：CrF2
overview
Specs
| Chinese alias | - | ||
| English alias | Chromium(II) fluoride | ||
| CAS number | 10049-10-2 | molecular formula | CrF2 |
| molecular weight | 89.99 | Exact mass | - |
| PSA | - | logp | - |
numbering system
| CAS | 10049-10-2 |
| Wikipedia | Chromium(II) fluoride |
| PubChem CID | 66229 |
| DSSTox Substance ID | DTXSID30143338 |
| European Community (EC) Number | 233-168-0 |
| PubChem Reference Collection SID | 505572781 |
| MEP ID | _25Q1B3FNN |
physicochemical properties
| Complexity | 2.8 |
| Exact Mass | 89.937311 |
| Formal Charge | 0 |
| Chemical Classes | Metals -> Chromium Compounds, Inorganic |
| Heavy Atom Count | 3 |
| Molecular Weight | 89.993 |
| Monoisotopic Mass | 89.937311 |
| Isotope Atom Count | 0 |
| Physical Description | Blue-green, iridescent crystals Steel-gray lustrous crystals; [MSDSonline] |
| Rotatable Bond Count | 0 |
| Hydrogen Bond Donor Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Hydrogen Bond Acceptor Count | 2 |
| Topological Polar Surface Area | 0 Ų |
| Defined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
Safety information
Hazards Summary：
The relatively unstable divalent (chromous) ion is rapidly oxidized to the trivalent (Cr(III); chromic] form. [Nordberg, p. 718] Bivalent compounds are unstable and have little commercial value. [Asthma in the Workplace, p. 296] May be harmful after ingestion, inhalation, or skin contact; May damage eyes; Stable under recommended storage conditions. [MSDSonline] A strong eye and skin irritant; [Hawley] See Chromium.
Regulatory Information：
New Zealand EPA Inventory of Chemical Status: Chromium fluoride (CrF2): Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Threshold Limit Values (TLV)：
2.5 [mg/m3], as F
Hazard Classes and Categories：
Eye Dam. 1 (86.4%)
Permissible Exposure Limit (PEL)：
0.5 [mg/m3], as Cr (2.5 mg/m3, as F)
Exposure Control and Personal Protection：
Maximum Allowable Concentration (MAK): 1.0 [mg/m3], as F, inhalable fraction[German Research Foundation (DFG)]
Production methods and uses
purpose
Sources/Uses: Used in chromizing, as a catalyst, and in nuclear reactor fuels
Related
upstream information
No upstream information yet
downstream information
No downstream information yet
MSDS
Found 0 shareMSDS
