ISSN:
1572-9567
Keywords:
density
;
diethylene glycol
;
ethylene glycol
;
HFC-134a
;
polyethylene glycol
;
polypropylene glycol
;
tetraethylene glycol
;
triethylene glycol
;
viscosity
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Liquid viscosity and density of six binary mixtures of HFC-134a with glycols [ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol (400), and polypropylene glycol (2000)] have been measured in the temperature range from 273 to 333 K. The viscosity was measured by a rolling-ball viscometer calibrated with standard liquids of viscosities and densities (JS5, JS10, JS20, and JS50). The density was measured with a glass pycnometer. The uncertainties of the measurements were estimated to be less than 3.4 % for viscosity and 0.04 % for density, respectively. An equation is given to represent the obtained viscosity values as a function of weight fraction and temperature.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00522660
