Appearance and properties: Light yellow liquid.
PH value (indicated concentration) : No data available
Melting point/Freezing point (℃): -78℃
Boiling point, initial boiling point and boiling range (℃): 57.8℃
Density (g/L): No data available
Relative vapor density (air =1): No data
Relative density (water =1): 1.03
Heat of combustion (kJ/mol): No data available
Saturated vapor pressure (kPa): 47.8 (37.8℃)
Critical pressure (MPa): No data available
Critical temperature (℃): No data available
Flash point (℃): -19.0℃
N-octanol/water partition coefficient: No data
Decomposition temperature (℃): No data available
Self-ignition temperature (℃): 429℃
Lower explosive limit [% (V/V)]: 2.3% at 30℃
Upper explosion limit [% (V/V)]: (73℃) 100%
Flammability: Highly flammable.
Explosive: 3-chloropropyne is explosive
Solubility: Insoluble in water, but miscible with benzene, toluene, carbon tetrachloride, as well as ethanol, ether and ethyl acetate.
Refractive index: 1.4320

Purpose:
It is used as an intermediate in organic synthesis. It is used for manufacturing the drug Eugenin, soil fumigants, etc. It is also a modifier for engineering plastics. Its trisodium salt is an excellent heat stabilizer for polyvinyl chloride, and its esters are also important additives for polymers.
2. Organic synthesis intermediates, such as those used in the production of the medicine "Youjiangning", can also be used in the production of soil fumigants.
3. Propargyl chloride is a three-carbon alkylating reagent and also an equivalent of the acetone carboene ion, a ring-increasing reagent, and when converted to a metal-organic reagent, it becomes a nucleophile for alkyne or propylene groups.