Facile method for preparation of 5-nitrotetrazolates using a batch system
US9598380B2 · kind B2 · utility
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13References
15Claims
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Key dates
| Filing date | Jun 5, 2015 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Jun 5, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D257/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Described are methods for preparing salts of 5-nitrotetrazolate by reacting 5-aminotetrazole, an acid, and sodium nitrite in water in a batch reaction at an elevated temperature. As examples, the acid is nitric acid, sulfuric acid, perchloric acid, or hydrochloric acid, and the elevated temperature is at or above 65° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.