Production of tetrafluorammonium bifluoride and tetrafluorammonium tetrafluoroborate
US4160811A · kind A · utility
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16Claims
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Key dates
| Filing date | Feb 21, 1978 |
| Grant date | Jul 10, 1979 |
| Priority date | — |
| Expiry date | Feb 21, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B35/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The compound NF.sub.4 MF.sub.6 where M is a Group V metalloid is reacted with a fluoride of sodium to yield tetrafluorammonium bifluoride in solution with hydrogen fluoride and a precipitate of the formula NaMF.sub.6. The preferred metaloid is antimony. The formed tetrafluorammonium bifluoride may be converted to NF.sub.4 BF.sub.4 by reaction with BF.sub.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.