GB219273A - A process for producing chemically pure, toxic free narcotising ether - Google Patents
A process for producing chemically pure, toxic free narcotising etherInfo
- Publication number
- GB219273A GB219273A GB19026/23A GB1902623A GB219273A GB 219273 A GB219273 A GB 219273A GB 19026/23 A GB19026/23 A GB 19026/23A GB 1902623 A GB1902623 A GB 1902623A GB 219273 A GB219273 A GB 219273A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ether
- benzidine
- narcotising
- chemically pure
- toxic free
- 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
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/34—Separation; Purification; Stabilisation; Use of additives
- C07C41/44—Separation; Purification; Stabilisation; Use of additives by treatments giving rise to a chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Pure ether is prepared by dissolving benzidine or a homologue or substitution product thereof in crude anhydrous ether at ordinary or increased pressure, allowing the ether salts of crystallization to form and regenerating the ether by heat from the separated crystals. Thus, finely-powdered benzidine is dissolved, preferably under pressure, in boiling crude ether which has been rendered anhydrous by treatment with quicklime, or sodium or potassium hydroxide; the crystals of benzidine with half a molecule of ether which form on cooling are separated, dried and heated to 100 DEG C. in an atmosphere of hydrogen, when pure ether distils off and is collected.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL219273X | 1923-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB219273A true GB219273A (en) | 1924-10-24 |
Family
ID=19779248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19026/23A Expired GB219273A (en) | 1923-07-21 | 1923-07-24 | A process for producing chemically pure, toxic free narcotising ether |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB219273A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3410760A (en) * | 1965-08-06 | 1968-11-12 | Ici Ltd | Recovery of ethers by contact with ammonia and an alkaline metal in a liquid medium |
-
1923
- 1923-07-24 GB GB19026/23A patent/GB219273A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3410760A (en) * | 1965-08-06 | 1968-11-12 | Ici Ltd | Recovery of ethers by contact with ammonia and an alkaline metal in a liquid medium |
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