GB585644A - Improvements in or relating to the stabilization of ethylene cyanohydrin - Google Patents
Improvements in or relating to the stabilization of ethylene cyanohydrinInfo
- Publication number
- GB585644A GB585644A GB22575/44A GB2257544A GB585644A GB 585644 A GB585644 A GB 585644A GB 22575/44 A GB22575/44 A GB 22575/44A GB 2257544 A GB2257544 A GB 2257544A GB 585644 A GB585644 A GB 585644A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cyanohydrin
- ethylene cyanohydrin
- acid
- stabilised
- per cent
- 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
- C07C255/00—Carboxylic acid nitriles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Ethylene cyanohydrin is stabilised by the addition of a minor but sufficient proportion of an acid to inhibit deterioration of the cyanohydrin, for example, hydrochloric, phosphoric, boric, nitric, sulphuric, carbonic, acetic, acrylic, tannic, oxalic, benzoic or phthalic acid. The quantity of acid employed is of the order of 0.01 per cent to 1.0 per cent by weight. Tables are given showing the stabilising effect of a number of the above-mentioned acids. Ethylene cyanohydrin so stabilised may be stored for long periods in steel or glass containers without substantial discolouration or decrease in purity.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US252751XA | 1943-11-18 | 1943-11-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB585644A true GB585644A (en) | 1947-02-14 |
Family
ID=21825076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22575/44A Expired GB585644A (en) | 1943-11-18 | 1944-11-15 | Improvements in or relating to the stabilization of ethylene cyanohydrin |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH252751A (en) |
FR (1) | FR915737A (en) |
GB (1) | GB585644A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2745865A (en) * | 1953-02-27 | 1956-05-15 | Monsanto Chemicals | Preparation of cyanohydrins |
US2748154A (en) * | 1953-02-27 | 1956-05-29 | Monsanto Chemicals | Preparation of cyanohydrins |
US3155601A (en) * | 1961-12-29 | 1964-11-03 | Standard Oil Co | Stabilizing of cyanhydrins in acrylonitrile solutions |
US6031123A (en) * | 1998-05-14 | 2000-02-29 | Dsm Fine Chemicals Austria Gmbh | Process for stabilizing cyanohydrins |
-
1944
- 1944-11-15 GB GB22575/44A patent/GB585644A/en not_active Expired
-
1945
- 1945-10-11 FR FR915737D patent/FR915737A/en not_active Expired
- 1945-11-03 CH CH252751D patent/CH252751A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2745865A (en) * | 1953-02-27 | 1956-05-15 | Monsanto Chemicals | Preparation of cyanohydrins |
US2748154A (en) * | 1953-02-27 | 1956-05-29 | Monsanto Chemicals | Preparation of cyanohydrins |
US3155601A (en) * | 1961-12-29 | 1964-11-03 | Standard Oil Co | Stabilizing of cyanhydrins in acrylonitrile solutions |
US6031123A (en) * | 1998-05-14 | 2000-02-29 | Dsm Fine Chemicals Austria Gmbh | Process for stabilizing cyanohydrins |
AT408883B (en) * | 1998-05-14 | 2002-03-25 | Dsm Fine Chem Austria Gmbh | METHOD FOR STABILIZING CYANHYDRINES |
Also Published As
Publication number | Publication date |
---|---|
CH252751A (en) | 1948-01-31 |
FR915737A (en) | 1946-11-15 |
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