摘要:
This invention relates to compositions, methods and systems having utility in numerous applications, and in particular, uses for compositions containing the compound cis-1,1,1,4,4,4-hexafluoro-2-butene (Z-HFO-1336mzzm), which has the following structure:
摘要:
The present invention relates, in part, to heat transfer systems, methods and compositions which utilize a heat transfer fluid comprising: (a) from about or greater than about 0% to about 15% by weight of HCFO-1233zd; (b) from about 65% to less than about 100% by weight of HFO-1234ze, or HFO-1234yf, or combinations thereof; and (c) from greater than about 0% to about 20% by weight of HFC- 125, with the weight percent being based on the total of the components (a) - (c) in the composition.
摘要:
A dielectric gaseous compound which exhibits the following properties: a boiling point in the range between about -20°C to about -273°C; non-ozone depleting; a GWP less than about 22,200; chemical stability, as measured by a negative standard enthalpy of formation (dHf
摘要:
The present invention relates, in part, to heat transfer systems, methods and compositions which utilize a heat transfer fluid comprising: (a) HFO-1234ze; (b) HFC-227ea; and (c) optionally HFC- 134a, wherein HFO-1234ze and HFC-227ea are provided in effective amounts to form an azeotrope or azeotrope-like composition.