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Tetrachloroethylene (data page)

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Chemical data page

This page provides supplementary chemical data on tetrachloroethylene.

Material Safety Data Sheet

The handling of this chemical may incur notable safety precautions. It is highly recommended that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its directions. MSDS is available from Fisher Scientific.

Structure and properties

Structure and properties
Index of refraction, nD 1.5055 at 20 °C
Abbe number ?
Dielectric constant, εr 2.5 ε0 at 21 °C
Bond strength ?
Bond length ?
Bond angle ?
Magnetic susceptibility ?
Surface tension 31.74 dyn/cm at 20 °C(C2Cl4 against air)
44.4 dyn/cm at 25 °C (C2Cl4 against water)
Viscosity 1.1384 mPa·sec at 0.43 °C
0.8759 mPa·sec at 22.3 °C
0.6539 mPa·sec at 52.68 °C
0.4043 mPa·sec at 117.09 °C

Thermodynamic properties

Phase behavior
Triple point 250.81 K (–22.34 °C), ? Pa
Critical point 620 K (347 °C), 4760 kPa
Std enthalpy change
of fusion, ΔfusH 		10.88 kJ/mol
Std entropy change
of fusion, ΔfusS 		43.38 J/(mol·K)
Std enthalpy change
of vaporization, ΔvapH 		34.68 kJ/mol at 121 °C
Std entropy change
of vaporization, ΔvapS 		102.8 J/(mol·K) at 25 °C
Solid properties
Std enthalpy change
of formation, ΔfHsolid 		? kJ/mol
Standard molar entropy,
Ssolid 		? J/(mol K)
Enthalpy of state transition, ΔtrsH 0.820 kJ/mol (crystal II → crystal I)
–148 °C to –63 °C
Entropy of state transition, ΔtrsS 5.26 J/(mol K) (crystal II → crystal I)
–148 °C to –63 °C
Heat capacity, cp ? J/(mol K)
Liquid properties
Std enthalpy change
of formation, ΔfHliquid 		–54.4 kJ/mol
Standard molar entropy,
Sliquid 		240.6 J/(mol K)
Enthalpy of combustion, ΔcH –830 kJ/mol
Heat capacity, cp 146 J/(mol K) at 25 °C
Gas properties
Std enthalpy change
of formation, ΔfHgas 		–12.43 kJ/mol
Standard molar entropy,
Sgas 		343.4 J/(mol K) at 25 °C
Heat capacity, cp 95.51 J/(mol K) at 25 °C

Vapor pressure of liquid

P in mm Hg 1 10 40 100 400 760
T in °C –20.6(s) 13.8 40.1 61.3 100.0 120.8

Table data obtained from CRC Handbook of Chemistry and Physics 47th ed. Note that "(s)" annotation indicates equilibrium temperature of vapor pressure of solid. Otherwise indication is equilibrium temperature of vapor of liquid.

log10 of Tetrachloroethylene vapor pressure. Uses formula: log e ⁡ P m m H g = {\displaystyle \scriptstyle \log _{e}P_{mmHg}=} log e ⁡ ( 760 101.325 ) − 6.665868 log e ⁡ ( T + 273.15 ) − 6530.97 T + 273.15 + 60.47398 + 3.522382 × 10 − 6 ( T + 273.15 ) 2 {\displaystyle \scriptstyle \log _{e}({\frac {760}{101.325}})-6.665868\log _{e}(T+273.15)-{\frac {6530.97}{T+273.15}}+60.47398+3.522382\times 10^{-6}(T+273.15)^{2}} obtained from CHERIC

Distillation data

See also

Vapor-Liquid Equilibrium
of Tetrachloroethylene/Methanol
P = 760 mm Hg
BP
Temp.
°C 		% by mole methanol
liquid vapor
117.2 0.1 7.4
113.2 0.3 21.0
107.7 0.3 33.5
102.7 0.3 44.5
97.6 0.8 53.0
93.0 1.1 58.8
87.0 1.7 66.0
80.5 2.4 72.4
70.2 6.6 80.0
65.3 21.5 83.7
64.4 53.3 84.8
63.9 77.6 85.9
63.5 88.3 88.3
63.6 93.7 91.3
63.8 95.0 92.7
64.2 97.9 95.8
   
Vapor-Liquid Equilibrium
of Tetrachloroethylene/1,2-Dichloroethane
P = 760 mm Hg
BP
Temp.
°C 		% by mole dichloroethane
liquid vapor
117.8 2.0 11.5
114.0 5.0 21.7
110.9 9.2 31.5
108.0 12.0 38.8
106.0 15.0 43.7
103.3 20.0 51.2
100.5 26.4 59.2
98.5 31.1 62.9
95.2 40.0 69.6
93.7 45.0 72.5
92.2 50.0 75.5
89.9 59.4 80.4
88.2 67.9 84.2
86.8 75.0 87.5
85.5 83.8 91.6
84.2 93.8 97.0
   
Vapor-Liquid Equilibrium
of Tetrachloroethylene/Isopropanol
P = 100 kPa
BP
Temp.
°C 		% by mole C2Cl4
liquid vapor
81.7 0.0 0.0
81.6 0.8 1.2
81.5 1.6 2.3
81.4 3.0 4.1
81.3 5.4 6.7
81.2 8.4 9.4
81.1 12.0 12.1
81.1 16.4 14.5
81.3 21.9 17.1
81.5 27.8 19.0
81.8 33.9 20.3
82.2 39.4 21.5
82.6 44.0 22.6
83.0 50.6 23.1
83.4 55.2 24.2
83.8 60.0 24.7
84.4 65.0 25.3
85.0 69.1 26.2
85.6 75.5 27.7
86.8 79.8 29.6
90.1 87.9 35.3
95.1 92.3 42.7
98.0 94.1 48.2
101.6 95.5 54.0
105.9 97.0 62.6
110.2 98.1 72.1
114.7 99.2 85.0
117.6 99.6 92.1
121.0 100.0 100.0

Spectral data

UV-Vis
λmax ? nm
Extinction coefficient, ε ?
IR
Major absorption bands ? cm
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments 		 
  This box:   

References

  1. Lange's Handbook of Chemistry, 10th ed. pp 1289-1376
  2. "Dielectric Constants Chart". ChemicalLand21. Archived from the original on 29 May 2007. Retrieved 9 June 2007.
  3. "Tetrachloroethylene". National Toxicology Program. Archived from the original on 24 September 2009. Retrieved 9 June 2007.
  4. Lange's Handbook of Chemistry, 10th ed. pp 1669-1674
  5. "Pure Component Properties" (Queriable database). Chemical Engineering Research Information Center. Retrieved 9 June 2007.
  6. ^ "Binary Vapor-Liquid Equilibrium Data" (Queriable database). Chemical Engineering Research Information Center. Retrieved 9 June 2007.

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