Typical Properties of
Chlorinated Solvents

Methylene Chloride Perchloroethylene Trichloroethylene 1,1,1-Trichloroethane
Chemical Formula CH2Cl2 C2Cl4 C2HCl3 C2H3Cl3
Molecular Weight 84.9 165.8 131.4 133.4
Boiling Point oF (oC)  @760 mm Hg 104 (40) 250 (121) 189 (87) 165 (74)
Freezing Point oF (oC) -139 (-95) -9 (-23) -124 (-87) -34 (-37)
Specific Gravity (g/cm3) @68oF   1.33 1.62 1.46 1.34
Pounds per gallon  @ 77oF 10.99 13.47 12.11 11.10
Vapor Density (air = 1.00) 2.93 5.76 4.53 4.55
Vapor Pressure (mm Hg)  @77oF 436 18.2 74.3 123
Evaporation Rate  @ 77oF
     ether= l 00 71 12 30 37
     n-butyl acetate=l 14.5 2.1 4.5 6.0
Specific Heat (BTU/lb per oF)  @68oF 0.28 0.21 0.23 0.25
Heat of Vaporization (cal/g)  @ boiling pt 78.9 50.1 56.4 56.7
Viscosity (cps)  @77oF 0.41 0.75 0.54 0.79
Solubility (g/l 00 g)
     water in solvent 0.17 1.01 0.04 0.05
     solvent in water 1.70 0.015 0.10 0.07
Surface Tension (dynes/cm)  @68oF 28.2 32.3 29.5 25.6
Kauri-Butanol (KB) Value

136

 90 129 124
Flash Point
     tag open cup

none

none

 none none
     tag closed cup

none

none

 none none
Flammable Limits (% solvent in air)
     lower limit

13

none

8

8
     upper limit

23

none

11

13

This information is believed to be correct as of the date of publication, but HSIA cannot guarantee its completeness or accuracy. In publishing this information, HSIA does not assume or undertake any duty imposed on any other party by law or regulation. It is the user's responsibility to determine the suitability of the solvent described in this paper, and HSIA assumes no responsibility arising out of such use.

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