1,1-Dichloro-1-fluoroethane  |

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Names
Preferred IUPAC name

1,1-Dichloro-1-fluoroethane

Other names

Dichlorofluoroethane; R-141b; HCFC-141b

Identifiers

CAS Number

* 1717-00-6 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 14829 Y

EC Number |

* 404-080-1

PubChem CID

* 15586

RTECS number |

* KI0997000

UNII |

* O1A3ASY5PW N

UN number | 9274

InChI

* InChI=1S/C2H3Cl2F/c1-2(3,4)5/h1H3 Y

Key: FRCHKSNAZZFGCA-UHFFFAOYSA-N Y

* InChI=1/C2H3Cl2F/c1-2(3,4)5/h1H3

Key: FRCHKSNAZZFGCA-UHFFFAOYAI

SMILES

* ClC(Cl)(F)C

Properties

Chemical formula

| C2H3Cl2F
Molar mass | 116.94 g·mol−1
Appearance  | Colorless liquid, ethereal odor
Density | 1.25 g/cm3 at 20 °C[1]
Melting point |  −103.5 °C (−154.3 °F; 169.7 K)[1]
Boiling point |  32 °C (90 °F; 305 K)[1]

Solubility in water

| 4 g/L (20 °C)[1]
Hazards
GHS pictograms |
GHS Signal word | Warning

GHS hazard statements

| H412, H420

GHS precautionary statements

| P273, P501, P502

Autoignition
temperature

|  532 °C (990 °F; 805 K)[1]
Explosive limits | 5.6–17.7% vol.[1]
Lethal dose or concentration (LD, LC):

LD50 (median dose)

| 5 g/kg (rat, oral)

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

N verify (what is YN ?)
Infobox references

Tracking categories (test):

* PairSizeSet

1,1-Dichloro-1-fluoroethane is a haloalkane with the formula C2H3Cl2F. It is one of the three isomers of dichlorofluoroethane. It belongs to the hydrochlorofluorocarbon (HCFC) family of man-made compounds that contribute significantly to both ozone depletion and global warming when released into the environment.

## Contents

* 1 Physiochemical properties
* 2 Production and use
* 3 Environmental effects
* 4 See also
* 5 References

## Physiochemical properties

1,1-Dichloro-1-fluoroethane can be a non-flammable, colourless liquid under room-temperature atmospheric conditions. The compound is very volatile with a boiling point of 32°C.[1][2] Its critical temperature is near 204°C.[3] Its smell has been described as "usually ethereal" (like ether).

## Production and use

1,1-Dichloro-1-fluoroethane is mainly used as a solvent and foam blowing agent under the names R-141b and HCFC-141b. It is a class 2 ozone depleting substance undergoing a global phaseout from production and use under the Montreal Protocol since the late 1990s. It is being replaced by HFCs within some applications.[4]

## Environmental effects

Growth of HCFC-141b in Earth's atmosphere since year 1993.[5]

The concentration of HCFC-141b in the atmosphere grew to near 25 parts per trillion by year 2016.[5] It has an ozone depletion potential (ODP) of 0.12.[6] This is low compared to the ODP=1 of trichlorofluoromethane (CFC-11, R-11), which also grew about ten times more abundant in the atmosphere prior to introduction of HFC-141b and subsequent adoption of the Montreal Protocol.

HFC-141b is also a minor but potent greenhouse gas. It has an estimated lifetime of about 10 years and a 100-year global warming potential ranging 725 to 2500.[7][8] This compares to the GWP=1 of carbon dioxide, which had a much greater atmospheric concentration near 400 parts per million in year 2020.

## See also

* IPCC list of greenhouse gases
* List of refrigerants

## References

1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Record of 1,1-Dichloro-1-fluoroethane in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 8 February 2009.
2. ↑ "Addenda d, j, l, m, and t to ANSI/ASHRAE Standard 34-2004". ANSI/ASHRAE Standard 34-2004, Designation and Safety Classification of Refrigerants. Atlanta, GA: American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.. 2007-03-03. http://ashrae.org/File Library/docLib/Public/20070613_342004_d_j_l_m_t_only.pdf.
3. ↑ Schoen, J. Andrew, "Listing of Refrigerants", Andy's HVAC/R Web Page, http://www.jandrewschoen.com/refchart.pdf, retrieved 2011-12-17
4. ↑ "Overview of HCFC Consumption and Available Alternatives For Article 5 Countries". ICF International. 2008. https://ec.europa.eu/clima/sites/clima/files/docs/0007/icf_hcfc_background_doc_en.pdf. Retrieved 2021-02-12.
5. ↑ 5.0 5.1 "HCFC-141b". NOAA Earth System Research Laboratories/Global Monitoring Division. https://www.esrl.noaa.gov/gmd/hats/gases/HCFC141b.html. Retrieved 2021-02-12.
6. ↑ John S. Daniel; Guus J.M. Velders; A.R. Douglass; P.M.D. Forster; D.A. Hauglustaine; I.S.A. Isaksen; L.J.M. Kuijpers; A. McCulloch et al. (2006). "Chapter 8. Halocarbon Scenarios, Ozone Depletion Potentials, and Global Warming Potentials". Scientific Assessment of Ozone Depletion: 2006. Geneva, Switzerland: World Meteorological Organization. http://www.esrl.noaa.gov/csd/assessments/ozone/2006/chapters/chapter8.pdf. Retrieved 9 October 2016.
7. ↑ "Chapter 8". AR5 Climate Change 2013: The Physical Science Basis. p. 731. https://www.ipcc.ch/report/ar5/wg1/.
8. ↑ "Refrigerants - Environmental Properties". http://www.engineeringtoolbox.com/Refrigerants-Environment-Properties-d_1220.html. Retrieved 2016-09-12.

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Retrieved from "https://handwiki.org/wiki/index.php?title=Chemistry:1,1-Dichloro-1-fluoroethane&oldid=2206405"
*[CID]: Compound ID
*[H412]: Harmful to aquatic life with long lasting effects
*[H420]: Harms public health and the environment by destroying ozone in the upper atmosphere
*[P273]: Avoid release to the environment
*[P501]: Dispose of contents/container to …
*[P502]: Refer to manufacturer or supplier for information on recovery or recycling
*[vol.]: volume