Propargyl chloride

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Propargyl chloride[1]
Propargyl chloride.svg
IUPAC name
Other names
Propargyl chloride, 3-Chloropropyne, 1-Chloro-2-propyne, 2-Propynyl chloride, Gamma-Chloroallylene, UN 2345
3D model (JSmol)
ECHA InfoCard 100.009.870
EC Number 210-856-9
Molar mass 74.51 g·mol−1
Appearance Clear to brown liquid
Density 1.0306 g/cm3
Melting point −78 °C (−108 °F; 195 K)
Boiling point 57 °C (135 °F; 330 K)
Highly flammable (F+), highly toxic (T+)
R-phrases (outdated) R23/24/25 R34
S-phrases (outdated) S16 S23 S24/25 S36/37 S39 S45
NFPA 704
Flammability code 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g., gasoline Health code 3: Short exposure could cause serious temporary or residual injury. E.g., chlorine gas Reactivity code 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g., calcium Special hazards (white): no codeNFPA 704 four-colored diamond
Flash point 18 °C (64 °F; 291 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Propargyl chloride, or 3-chloro-1-propyne, is a highly toxic and flammable clear brown liquid with chemical formula CHCCH2Cl. It is miscible with benzene or ethanol and insoluble in water. Its refractive index is 1.4350. Common uses for propargyl chloride include soil fumigation, corrosion prevention, and as an intermediate in organic synthesis.

It reacts with alcohols to form propargyl ethers.

See also[edit]


  1. ^ *Merck Index, 11th Edition, 7820

External links[edit]