Tetrachloroethylene (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,^[1] n_D	1.5055 at 20 °C
Abbe number	?
Dielectric constant,^[2] ε_r	2.5 ε₀ at 21 °C
Bond strength	?
Bond length	?
Bond angle	?
Magnetic susceptibility	?
Surface tension^[3]	31.74 dyn/cm at 20 °C(C₂Cl₄ against air) 44.4 dyn/cm at 25 °C (C₂Cl₄ against water)
Viscosity^[4]	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, Δ_fusH^o	10.88 kJ/mol
Std entropy change of fusion, Δ_fusS^o	43.38 J/(mol·K)
Std enthalpy change of vaporization, Δ_vapH^o	34.68 kJ/mol at 121 °C
Std entropy change of vaporization, Δ_vapS^o	102.8 J/(mol·K) at 25 °C
Solid properties
Std enthalpy change of formation, Δ_fH^o_solid	? kJ/mol
Standard molar entropy, S^o_solid	? J/(mol K)
Enthalpy of state transition, Δ_trsH^o	0.820 kJ/mol (crystal II → crystal I) –148 °C to –63 °C
Entropy of state transition, Δ_trsS^o	5.26 J/(mol K) (crystal II → crystal I) –148 °C to –63 °C
Heat capacity, c_p	? J/(mol K)
Liquid properties
Std enthalpy change of formation, Δ_fH^o_liquid	–54.4 kJ/mol
Standard molar entropy, S^o_liquid	240.6 J/(mol K)
Enthalpy of combustion, Δ_cH^o	–830 kJ/mol
Heat capacity, c_p	146 J/(mol K) at 25 °C
Gas properties
Std enthalpy change of formation, Δ_fH^o_gas	–12.43 kJ/mol
Standard molar entropy, S^o_gas	343.4 J/(mol K) at 25 °C
Heat capacity, c_p	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: $\scriptstyle \log _{e}P_{mmHg}=$ $\scriptstyle \log _{e}({\frac {760}{101.325}})-6.665868\log _{e}(T+273.15)-{\frac {6530.97}{T+273.15}}+60.47398+3.522382\times 10^{-6}(T+273.15)^{2}$ obtained from CHERIC^[5]

Distillation data

See also

Trichloroethylene (data page)

BP Temp. °C	% by mole methanol
Vapor-Liquid Equilibrium of Tetrachloroethylene/Methanol^[6] P = 760 mm Hg
BP Temp. °C	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

BP Temp. °C	% by mole dichloroethane
Vapor-Liquid Equilibrium of Tetrachloroethylene/1,2-Dichloroethane^[6] P = 760 mm Hg
BP Temp. °C	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

BP Temp. °C	% by mole C₂Cl₄
Vapor-Liquid Equilibrium of Tetrachloroethylene/Isopropanol^[6] P = 100 kPa
BP Temp. °C	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
λ_max	? nm
Extinction coefficient, ε	?
IR
Major absorption bands	? cm⁻¹
NMR
Proton NMR
Carbon-13 NMR
Other NMR data
MS
Masses of main fragments

References

^ Lange's Handbook of Chemistry, 10th ed. pp 1289-1376
^ "Dielectric Constants Chart". ChemicalLand21. Archived from the original on 29 May 2007. Retrieved 9 June 2007.
^ "Tetrachloroethylene". National Toxicology Program. Archived from the original on 15 September 2009. Retrieved 9 June 2007. {{cite web}}: |archive-date= / |archive-url= timestamp mismatch; 24 September 2009 suggested (help)
^ Lange's Handbook of Chemistry, 10th ed. pp 1669-1674
^ "Pure Component Properties" (Queriable database). Chemical Engineering Research Information Center. Retrieved 9 June 2007.
^ ^a ^b ^c "Binary Vapor-Liquid Equilibrium Data" (Queriable database). Chemical Engineering Research Information Center. Retrieved 9 June 2007.

"NIST Standard Reference Database".

Except where noted otherwise, data relate to standard ambient temperature and pressure.

Disclaimer applies.

[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.

[ntp-3] "Tetrachloroethylene". National Toxicology Program. Archived from the original on 15 September 2009. Retrieved 9 June 2007. {{cite web}}: |archive-date= / |archive-url= timestamp mismatch; 24 September 2009 suggested (help)

[4] Lange's Handbook of Chemistry, 10th ed. pp 1669-1674

[cheric_p-5] "Pure Component Properties" (Queriable database). Chemical Engineering Research Information Center. Retrieved 9 June 2007.

[cheric_b-6] "Binary Vapor-Liquid Equilibrium Data" (Queriable database). Chemical Engineering Research Information Center. Retrieved 9 June 2007.

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