Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Measurement and Correlation of the Thermal Conductivity of cis-1,1,1,4,4,4-hexafluoro-2-butene



Richard A. Perkins, Marcia L. Huber


New experimental data for the thermal conductivity of cis-1,1,1,4,4,4-hexafluoro-2-butene (R1336mzz(Z)) are reported for vapor, liquid and supercritical states. These data were obtained with transient hot-wire apparatus over the temperature range from 192 K to 498 K and at pressures from 0.05 MPa to 69 MPa. These data were used to develop a wide-range correlation for the thermal conductivity of the vapor, liquid, and supercritical fluid. The experimental data reported here have an uncertainty of 1 % for the liquid and supercritical regions (densities > 600 kgm-3), 1.5 % for vapor and supercritical regions (pressures  1 MPa and densities < 200 kgm-3), 3 % for supercritical states (200 kgm-3  densities  600 kgm-3), and 3 % for vapor and supercritical states (pressures < 1 MPa). The thermal-conductivity correlation developed in this work is estimated to have an expanded relative uncertainty, at a 95 % confidence level, ranging from approximately 1.4 % to 4.2 % depending on the temperature and pressure, with larger uncertainties in the critical region.
International Journal of Thermophysics


cis-1, 1, 1, 4, 4, 4-hexafluoro-2-butene, R1336mzz(Z), thermal conductivity


Perkins, R. and Huber, M. (2020), Measurement and Correlation of the Thermal Conductivity of cis-1,1,1,4,4,4-hexafluoro-2-butene, International Journal of Thermophysics, [online],, (Accessed May 22, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created May 22, 2020, Updated October 12, 2021