Melting point :<-50°C
Boiling point :58 °C(lit.)
Density :1.03 g/mL at 25 °C(lit.)
vapor pressure :24.08-69.52kPa at 20-50℃
refractive index :n20/D 1.456
Flash point :7 °F
storage temp. :2-8°C
solubility :benzene: miscible
form :clear liquid
color :Colorless to Red to Green
Water Solubility :Not miscible or difficult to mix with water.
Merck :14,7810
BRN :506005
Dielectric constant :7.5599999999999996
Exposure limits :ACGIH: TWA 20 ppm
OSHA: Ceiling 300 ppm; TWA 200 ppm
NIOSH: IDLH 500 ppm; TWA 100 ppm(375 mg/m3); STEL 150 ppm(560 mg/m3) InChI :1S/C3H3Cl/c1-2-3-4/h1H,3H2
InChIKey :LJZPPWWHKPGCHS-UHFFFAOYSA-N
SMILES :ClCC#C
LogP :1.3 at 25℃
CAS DataBase Reference :624-65-7(CAS DataBase Reference)
NIST Chemistry Reference :1-Propyne, 3-chloro-(624-65-7)
EPA Substance Registry System :1-Propyne, 3-chloro- (624-65-7)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501 H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.