Fluoroform
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- R-23 redirects here; for the Soviet air-to-air missile, see Vympel R-23
| Fluoroform | |
|---|---|
  |
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| General | |
| Systematic name | trifluoromethane |
| Other names | Fluoroform Carbon trifluoride freon 23 R-23 FE-13 |
| Molecular formula | CHF3 |
| SMILES | C(F)(F)F | |
| Molar mass | 70.0141 g/mol |
| Appearance | Colourless gas. |
| CAS number | [75-46-7] [1] |
| Properties | |
| Density and phase | 0.00286 g/cm3, gas. |
| Solubility in water | Slightly soluble. |
| Melting point | -155.2°C (191.05 K) |
| Boiling point | -82.1°C (117.95 K) |
| Structure | |
| Molecular shape | Tetrahedral |
| Coordination geometry |
? |
| Dipole moment | ? D |
| Hazards | |
| MSDS | External MSDS |
| Main hazards | Nervous system depression. |
| NFPA 704 |
0
1
0
|
| Flash point | Non-flammable. |
| R/S statement | R: ? S: S38 |
| RTECS number | PB6900000 |
| Supplementary data page | |
| Structure and properties |
n, εr, etc. |
| Thermodynamic data |
Phase behaviour Solid, liquid, gas |
| Spectral data | UV, IR, NMR, MS |
| Related compounds | |
| Other anions | ? |
| Other cations | ? |
| Related compounds | ? |
| Except where noted otherwise, data are given for materials in their standard state (at 25°C, 100 kPa) Infobox disclaimer and references |
|
Fluoroform CHF3; CAS number, also known as trifluoromethane, is one of the haloalkanes with zero ozone depletion, as it does not contain any chlorine. As a refrigerant, it is known as R-23 or HFC-23. In the semiconductor industry, it is also used in plasma etching of silicon oxide or silicon nitride.
HFC-23 is also used as a replacement for Halon 1301 in fire suppression systems as a total flooding gaseous fire suppression agent. When used as a fire suppressant, the chemical carries the DuPont trade name, FE-13.
Fluoroform is the IUPAC preferred name for this compound.
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[edit] External links
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