Method for manufacturing hydrazodicarbonamide
US4049712A · kind A · utility
3Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1972 |
| Grant date | Sep 20, 1977 |
| Priority date | — |
| Expiry date | Jun 23, 1992 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C281/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a method for preparing hydrazodicarbonamide ##STR1## which comprises reacting urea, sulfuric acid, water and an azine or a solution containing an azine of the formula ##STR2## wherein R.sub.1 is hydrogen and R.sub.2 or R.sub.1 and R.sub.2 each is a straight or branched alkyl radical or cycloalkyl radical of up to 6 carbon atoms or R.sub.1 and R.sub.2 of both the >C=N-- moieties together form a straight or branched chain alkylene radical of from 3 to 5 carbon atoms and recovering the hydrazodicarbonamide from the reaction medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.