Melting point :-122 °C (lit.)
Boiling point :30-32 °C (lit.)
Density :1.213 g/mL at 20 °C (lit.)
vapor density :3.46 (vs air)
vapor pressure :9.68 psi ( 20 °C)
refractive index :n20/D 1.426
Flash point :−9 °F
storage temp. :Store at +2°C to +8°C.
solubility :2.5g/l
form :Liquid
color :Clear colorless
explosive limit :8.4-16.5%(V)
Water Solubility :Soluble in water (2.5g/L at 20°C).
Sensitive :Light Sensitive
Merck :14,9996
BRN :1733365
Henry's Law Constant :0.86, 1.00, 1.27, 1.97, and 2.66 at 2.0, 6.0, 10.0, 18.0, and 25.0 °C, respectively (EPICS-SPME, Dewulf et al., 1999)
Exposure limits :TLV-TWA 5 ppm (～20 mg/m³) (ACGIH); TLV-STEL 20 ppm (ACGIH); carcinogenic ity: Animal Limited Evidence, Human Inad equate Evidence (IARC).
Dielectric constant :4.7（16℃）
Stability :Stable. Very flammable - note low flash point. Vapour may travel considerable distances to a source of ignition. Incompatible with strong oxidizing agents, alcohols, halides, sopper, aluminium. Rapidly absorbs oxygen from the air and forms explosive peroxides. Light and water promote self-polymerisation. May form explosive mix
CAS DataBase Reference :75-35-4(CAS DataBase Reference)
IARC :2B (Vol. 39, Sup 7, 71, 119) 2019
EPA Substance Registry System :1,1-Dichloroethylene (75-35-4)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H224 Extremely flammable liquid and vapour Flammable liquids Category 1 Danger H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312 H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501 H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 1 Danger P260, P264, P270, P314, P501 H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501 H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P273 Avoid release to the environment. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P403+P233 Store in a well-ventilated place. Keep container tightly closed.