| Revision as of 03:18, 6 May 2011 edit98.234.112.116 (talk) Clipping out a reference to firefighting based on evidence that this substance is routinely used in firefighting. See the explanation on the discussion page.← Previous edit |
Latest revision as of 20:04, 16 November 2024 edit undo92.184.110.155 (talk)No edit summaryTags: Mobile edit Mobile web edit |
| (29 intermediate revisions by 25 users not shown) |
| Line 1: |
Line 1: |
|
{{chembox |
|
{{chembox |
|
|
| Watchedfields = changed |
|
| verifiedrevid = 401762066 |
|
| verifiedrevid = 477209734 |
|
| ImageFile = Dichlorotrifluoroethane.png |
|
| ImageFileL1 = Dichlorotrifluoroethane.png |
|
| ImageSize = 150px |
|
|
|
| ImageSizeL1 = 130px |
| ⚫ |
| IUPACName = 2,2-Dichloro-1,1,1-trifluoroethane |
|
|
|
| ImageAltL1 = Skeletal formula of 2,2-dichloro-1,1,1-trifluoroethane |
| ⚫ |
| OtherNames = 1,1,1-Trifluoro-2,2-dichloroethane, Dichlorotrifluoromethylmethane, Dichlorotrifluoroethane, Freon 123, HCFC-123, R 123 |
|
|
|
| ImageFileR1 = HCFC-123-3D-spacefill.png |
|
| Reference =<ref></ref> |
|
|
|
| ImageSizeR1 = 120 |
| ⚫ |
| Section1 = {{Chembox Identifiers |
|
|
|
| ImageAltR1 = Space-filling model of the 2,2-dichloro-1,1,1-trifluoroethane molecule |
| ⚫ |
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
|
|
⚫ |
| PIN = 2,2-Dichloro-1,1,1-trifluoroethane |
|
⚫ |
| OtherNames = 1,1,1-Trifluoro-2,2-dichloroethane, Dichlorotrifluoromethylmethane, Dichlorotrifluoroethane, Freon 123, HCFC-123, R-123 |
|
|
| Reference =<ref>{{Cite web |url=http://msds.dupont.com/msds/pdfs/EN/PEN_09004a2f80006544.pdf |title=MSDS from DuPont |access-date=2007-02-22 |archive-date=2012-02-06 |archive-url=https://web.archive.org/web/20120206011240/http://msds.dupont.com/msds/pdfs/EN/PEN_09004a2f80006544.pdf |url-status=dead }}</ref> |
|
⚫ |
|Section1={{Chembox Identifiers |
|
⚫ |
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
|
| ChemSpiderID = 9016 |
|
| ChemSpiderID = 9016 |
|
| InChIKey = OHMHBGPWCHTMQE-UHFFFAOYAP |
|
| InChIKey = OHMHBGPWCHTMQE-UHFFFAOYAP |
| Line 16: |
Line 21: |
|
| CASNo_Ref = {{cascite|correct|CAS}} |
|
| CASNo_Ref = {{cascite|correct|CAS}} |
|
| CASNo = 306-83-2 |
|
| CASNo = 306-83-2 |
|
|
| UNII_Ref = {{fdacite|correct|FDA}} |
| ⚫ |
| EINECS = 206-190-3 |
|
|
| PubChem = 9385 |
|
| UNII = 6S7C791U3V |
|
⚫ |
| EINECS = 206-190-3 |
| ⚫ |
| SMILES = ClC(Cl)C(F)(F)F |
|
|
|
| PubChem = 9385 |
| ⚫ |
| InChI = 1/C2HCl2F3/c3-1(4)2(5,6)7/h1H |
|
|
⚫ |
| SMILES = ClC(Cl)C(F)(F)F |
| ⚫ |
| RTECS = KI1108000 |
|
|
⚫ |
| InChI = 1/C2HCl2F3/c3-1(4)2(5,6)7/h1H |
|
⚫ |
| RTECS = KI1108000 |
|
}} |
|
}} |
|
| Section2 = {{Chembox Properties |
|
|Section2={{Chembox Properties |
|
|
| C=2 | H=1 | Cl=2 | F=3 |
|
| Formula = C<sub>2</sub>HCl<sub>2</sub>F<sub>3</sub> |
|
|
⚫ |
| Appearance = Colorless liquid |
|
| MolarMass = 152.93 g/mol |
|
|
⚫ |
| Density = 1.4638 g/cm<sup>3</sup> |
| ⚫ |
| Appearance = Colorless liquid |
|
|
|
| MeltingPtC = -107 |
| ⚫ |
| Density = 1.46 g/cm<sup>3</sup> |
|
|
| MeltingPt = -107 °C |
|
| BoilingPtC = 27.82 |
|
| BoilingPt = 27.6 °C |
|
| Solubility = 0.39% |
|
| Solubility = 0.39% |
|
| VaporPressure = 89.3 kPa |
|
| VaporPressure = 89.3 kPa |
|
| RefractIndex = 1.3392 |
|
}} |
|
}} |
|
| Section7 = {{Chembox Hazards |
|
|Section7={{Chembox Hazards |
|
| MainHazards = |
|
| MainHazards = |
|
| FlashPt = |
|
| FlashPt = |
|
| Autoignition = |
|
| AutoignitionPt = |
|
|
| NFPA-H = 1 | NFPA-F = 0 | NFPA-R = 0 |
|
}} |
|
}} |
|
}} |
|
}} |
|
|
|
|
|
'''2,2-Dichloro-1,1,1-trifluoroethane''' or '''HCFC-123''' is considered as an alternative to ] in low pressure ] systems, and should not be used in foam blowing processes or solvent applications. |
|
'''2,2-Dichloro-1,1,1-trifluoroethane''' or '''HCFC-123''' is considered as an alternative to ] in low pressure ] and ] systems, and should not be used in foam blowing processes or solvent applications. It is also the primary component of the ] fire-extinguishing mixture. |
|
|
|
|
|
Its ] is ODP = 0.012, and ] is GWP = 76. HCFC-123 will eventually be phased out under the current schedule of the Montreal Protocol, but can continue to be used in new HVAC equipment until 2020 in developed countries, and will still be produced for service use of HVAC equipment until 2030. Developing countries can use in new equipment until 2030, and can be produced for use in service until 2040. |
|
Its ] is ODP = 0.012, and ] is GWP = 76. HCFC-123 will eventually be phased out under the current schedule of the ]. It was discontinued in new HVAC equipment in 2020 in developed countries but will still be produced for service use of HVAC equipment until 2030. Developing countries can continue to use It in new equipment until 2030 and will be produced for use in service there until 2040. |
|
|
|
|
|
HCFC-123 is used in large tonnage centrifugal chiller applications, and is the most efficient refrigerant currently in use in the marketplace for HVAC applications. |
|
HCFC-123 is used in large tonnage centrifugal chiller applications, and is the most efficient refrigerant currently in use in the marketplace for HVAC applications. HCFC-123 is also used as a testing agent for bypass leakage of carbon adsorbers in gas filtration systems, and as the primary chemical in ] fire-extinguishing agent.<ref>{{cite tech report |title=Halotron Emergency Safety Datasheet |number=CAS-306-83-2 |institution=Kidde Fire Systems |year=2002 |url=http://www.associatedfire.com/wp-content/uploads/halotron_msds_sheet.pdf |format=PDF}}</ref> |
|
|
|
|
|
Storage tanks carrying HCFC-123 should be a light grey. |
|
Cylinders of HCFC-123 were a light grey prior to the elimination of cylinder color identification. |
|
|
|
|
|
Isomers are ] (R-123a) with CAS 354-23-4 and |
|
]s are ] (R-123a) with CAS 354-23-4 and |
|
] (R-123b) with CAS 812-04-4. |
|
] (R-123b) with CAS 812-04-4. |
|
|
|
|
|
==Production== |
|
|
2,2-Dichloro-1,1,1-trifluoroethane can be produced by reacting ] with ] in the gas phase. This is an exothermic reaction and requires a catalyst: |
|
|
:<math>\mathrm{Cl_2C{=}CCl_2 + 3 \ HF \longrightarrow\ Cl_2CH{-}CF_3 \ + 2 \ HCl}</math> |
|
|
|
|
|
==References== |
|
==References== |
| Line 56: |
Line 68: |
|
* {{ICSC|1343|13}} |
|
* {{ICSC|1343|13}} |
|
* |
|
* |
|
* |
|
* {{Webarchive|url=https://web.archive.org/web/20061013144803/http://www.nist.gov/kinetics/spectra/ir_spectra/CHCl2-CF3%20(HCFC-123)1.pdf |date=2006-10-13 }} |
|
|
|
|
|
{{DEFAULTSORT:Dichlorotrifluoroethane}} |
|
{{DEFAULTSORT:Dichlorotrifluoroethane}} |
|
] |
|
] |
|
|
] |
|
] |
|
] |
|
|
] |
|
|
|
|
] |
|
|
] |
|