GB817523A - Electrolytic production of unsymmetrical dimethylhydrazine - Google Patents
Electrolytic production of unsymmetrical dimethylhydrazineInfo
- Publication number
- GB817523A GB817523A GB26758/57A GB2675857A GB817523A GB 817523 A GB817523 A GB 817523A GB 26758/57 A GB26758/57 A GB 26758/57A GB 2675857 A GB2675857 A GB 2675857A GB 817523 A GB817523 A GB 817523A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- udmh
- nitrosodimethylamine
- solution
- dimethylhydrazine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C241/00—Preparation of compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
817,523. Electrolytic production of unsymmetrical dimethylhydrazine. NATIONAL DISTILLERS & CHEMICAL CORPORATION. Aug. 23, 1957 [Sept. 10, 1956], No. 26758/57. Class 41. Unsymmetrical. dimethylhydrazine (UDMH) is produced by electrolytically reducing in aqueous solution N-nitrosodimethylamine. Preferably the process is effected in acid solution, e.g. sulphuric, acid, hydrochloric acid, acetic acid but conducting salts such as sodium sulphate and ammonium chloride may be used instead of acids. Typically the solution contains 1 mol. of sulphuric acid per mol. of the nitrosodimethylamine and up to 0.5 of the nitrosodimethylamine per 150 ml. of water and the cathode current density may be from 0.023 to 0.24 amps/sq. cm. at a temperature of 0 to 80 C. The cathode may be mercury, lead, graphite or other non-reactive material while the anode may be of lead, and the cell is divided into catholyte and anolyte compartments by a porous diaphragm. The UDMH is separated from the catholyte by neutralizing, preferably first partially with lime and then with sodium hydroxide, filtering, and then fractionally distilling off the UDMH from the neutralized solution.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US817523XA | 1959-09-10 | 1959-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB817523A true GB817523A (en) | 1959-07-29 |
Family
ID=22166163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26758/57A Expired GB817523A (en) | 1959-09-10 | 1957-08-23 | Electrolytic production of unsymmetrical dimethylhydrazine |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB817523A (en) |
-
1957
- 1957-08-23 GB GB26758/57A patent/GB817523A/en not_active Expired
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