dichlorofluoromethane

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| Verifiedimages = changed

| Watchedfields = changed

| verifiedrevid = 414419791

| ImageFile_Ref = {{chemboximage|correct|??}}

| ImageFile = Dichlorofluoromethane.png

| ImageSize = 120px

| PIN = Dichloro(fluoro)methane

| OtherNames = Dichlorofluoromethane
Fluorodichloromethane
Monofluorodichloromethane
Dichloromonofluoromethane
Freon 21
Refrigerant 21
R 21
HCFC 21
Algofrene Type 5
Arcton 7
Halon 112
UN 1029
Genetron 21

|Section1={{Chembox Identifiers

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| ChemSpiderID = 6130

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 7GAO4CRJ0B

| InChIKey = UMNKXPULIDJLSU-UHFFFAOYAU

| ChEMBL_Ref = {{ebicite|correct|EBI}}

| ChEMBL = 116813

| StdInChI_Ref = {{stdinchicite|correct|chemspider}}

| StdInChI = 1S/CHCl2F/c2-1(3)4/h1H

| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

| StdInChIKey = UMNKXPULIDJLSU-UHFFFAOYSA-N

| CASNo = 75-43-4

| CASNo_Ref = {{cascite|correct|CAS}}

| EINECS = 200-869-8

| PubChem = 6370

| UNNumber = 1029

| SMILES = ClC(Cl)F

| InChI = 1/CHCl2F/c2-1(3)4/h1H

| RTECS = PA8400000

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|Section2={{Chembox Properties

| Formula = CHCl₂F

| MolarMass = 102.92{{nbsp}}g/mol

| Appearance = Colorless gas

| Odor = Ether-like

| Density = {{ubl

| 1.405{{nbsp}}kg/m³ at 9{{nbsp}}°C

| 1.366{{nbsp}}kg/m³ at 25{{nbsp}}°C

}}

| MeltingPtC = -135

| BoilingPtC = 8.92

| Solubility = 9.420{{nbsp}}g/L at 30{{nbsp}}°C

| LogP = 1.55

| HenryConstant = 0.19{{nbsp}}(mol·kg·bar){{sup|−1}}

| VaporPressure = 160{{nbsp}}kPa

| MagSus = −48.8·10⁻⁶{{nbsp}}cm³/mol

| ThermalConductivity = 0.0086{{nbsp}}W/m·K (300{{nbsp}}K)Touloukian, Y.S., Liley, P.E., and Saxena, S.C. Thermophysical properties of matter - the TPRC data series. Volume 3. Thermal conductivity - nonmetallic liquids and gases. Data book. 1970.

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|Section3={{Chembox Hazards

| GHSPictograms = {{GHS07}}

| GHSSignalWord = Warning

| HPhrases = {{H-phrases|420}}

| PPhrases = {{P-phrases|410+403|502}}

| FlashPt = Non-flammable

| FlashPt_ref =

| AutoignitionPtC = 522

| AutoignitionPt_notes =

| PEL = TWA 1000{{nbsp}}ppm (4200{{nbsp}}mg/m³){{PGCH|0197}}

| IDLH = 5000{{nbsp}}ppm

| REL = TWA 10{{nbsp}}ppm (40{{nbsp}}mg/m³)

| LC50 = {{ubl

| >800,000{{nbsp}}mg/m³ (mouse, 2{{nbsp}}hr)

| 49,900{{nbsp}}ppm (rat, 4{{nbsp}}hr){{IDLH|75434|Dichloromonofluoromethane}}

}}

| LCLo = {{ubl

| 100,000{{nbsp}}ppm (guinea pig, <1{{nbsp}}hr)

| 100,000{{nbsp}}ppm (mouse, <1{{nbsp}}hr)

}}

}}

}}

Dichlorofluoromethane or Freon 21 or R 21 is a halomethane or hydrochlorofluorocarbon with the formula CHCl₂F. It is a colorless and odorless gas. It is produced by fluorination of chloroform using a catalyst such as antimony trifluoride:

:CHCl₃ + HF → CHCl₂F + HCl