Azeotropic mixture of hydrogen fluoride and 1,1,1-trifluoro-2-chloroethane
US5401430A · kind A · utility
2Cited by
17References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1993 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Oct 18, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Hydrogen fluoride and 1,1,1-trifluoro-2-chloroethane forms an azeotropic mixture of which molar ratio of HF/1,1,1-trifluoro-2-chloroethane varies, for example, from about 60/40 at a pressure of 1.5 Kg/cm.sup.2 G and a temperature of 20.degree. C. to about 45/55 at a pressure of 15 Kg/cm.sup.2 G and a temperature of 87.degree.C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.