ES373964A1 - Procedure for the preparation of concentrated aqueous solutions of alpha- (2,4-dichlorofenoxy) - propionate potassium. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for the preparation of concentrated aqueous solutions of alpha- (2,4-dichlorofenoxy) - propionate potassium. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES373964A1 ES373964A1 ES373964A ES373964A ES373964A1 ES 373964 A1 ES373964 A1 ES 373964A1 ES 373964 A ES373964 A ES 373964A ES 373964 A ES373964 A ES 373964A ES 373964 A1 ES373964 A1 ES 373964A1
- Authority
- ES
- Spain
- Prior art keywords
- alpha
- aqueous solutions
- dichlorofenoxy
- translation
- procedure
- 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
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Abstract
The invention comprises aqueous solutions having a pH between 7 and 12 and containing at least 600 g. of solute per kg. of solution, at least 50% by weight of the solute being the potassium salt of [alpha]-(2,4-dichlorophenoxy) propionic acid and the balance, if any, being the sodium salt of the same acid and the potassium and sodium salts of 2-methyl-4-chlorophenoxyacetic acid. Methods of preparing these solutions are described, the essential feature of these methods being the avoidance of the addition of [alpha]-(2,4- dichlorophenoxy) propionic acid to concentrated potassium hydroxide, which leads to a three-component system. Examples are given. The solutions are useful as herbicides, optionally after dilution, and they may contain an emulsifier or dispersing agent to avoid the separation out of the calcium salts of [alpha]-(2,4- dichlorophenoxy) propionic acid if hard water is used for dilution.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1811410A DE1811410C3 (en) | 1968-11-28 | 1968-11-28 | Concentrated aqueous solutions of potassium α- (2,4-dichlorophenoxy) propionate and methods of making the concentrated solutions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES373964A1 true ES373964A1 (en) | 1972-03-16 |
Family
ID=5714590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES373964A Expired ES373964A1 (en) | 1968-11-28 | 1969-11-27 | Procedure for the preparation of concentrated aqueous solutions of alpha- (2,4-dichlorofenoxy) - propionate potassium. (Machine-translation by Google Translate, not legally binding) |
Country Status (20)
| Country | Link |
|---|---|
| JP (1) | JPS5228786B1 (en) |
| AT (1) | AT302709B (en) |
| BE (1) | BE742387A (en) |
| BG (1) | BG21206A3 (en) |
| BR (1) | BR6914579D0 (en) |
| CH (1) | CH521715A (en) |
| CS (1) | CS161865B2 (en) |
| DE (1) | DE1811410C3 (en) |
| DK (1) | DK127452B (en) |
| ES (1) | ES373964A1 (en) |
| FI (1) | FI52422C (en) |
| FR (1) | FR2024440A1 (en) |
| GB (1) | GB1265190A (en) |
| IL (1) | IL33259A (en) |
| NL (1) | NL6917259A (en) |
| NO (1) | NO127087B (en) |
| PL (1) | PL87132B1 (en) |
| RO (1) | RO56024A (en) |
| SE (1) | SE371566B (en) |
| SU (1) | SU430527A3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109096093A (en) * | 2018-09-14 | 2018-12-28 | 鹤壁市鹤农生物科技有限公司 | A kind of preparation method of 2-methyl-4-chlorophenoxyacetic acid sodium |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2602091A (en) * | 1951-01-02 | 1952-07-01 | Dow Chemical Co | Process for purifying the polychlorophenoxy-aliphatic-monocarboxylic acids |
| GB698022A (en) * | 1951-07-05 | 1953-10-07 | Dow Chemical Co | Process for the purification of phenoxy-aliphatic-mono-carboxylic acids |
| NL221265A (en) * | 1956-10-11 | |||
| BE566680A (en) * | 1957-04-12 | |||
| FR1313847A (en) * | 1960-11-07 | 1963-01-04 | Boots Pure Drug Co Ltd | Herbicidal composition, its preparation process and process for its use |
| NL289519A (en) * | 1962-02-28 |
-
1968
- 1968-11-28 DE DE1811410A patent/DE1811410C3/en not_active Expired
-
1969
- 1969-10-27 CH CH1605569A patent/CH521715A/en not_active IP Right Cessation
- 1969-10-27 IL IL33259A patent/IL33259A/en unknown
- 1969-11-06 RO RO61483A patent/RO56024A/ro unknown
- 1969-11-14 SU SU1477798A patent/SU430527A3/ru active
- 1969-11-17 PL PL1969136931A patent/PL87132B1/pl unknown
- 1969-11-17 NL NL6917259A patent/NL6917259A/xx not_active Application Discontinuation
- 1969-11-18 GB GB1265190D patent/GB1265190A/en not_active Expired
- 1969-11-24 CS CS7729A patent/CS161865B2/cs unknown
- 1969-11-24 BG BG13417A patent/BG21206A3/xx unknown
- 1969-11-25 FI FI693422A patent/FI52422C/en active
- 1969-11-26 NO NO04687/69A patent/NO127087B/no unknown
- 1969-11-27 ES ES373964A patent/ES373964A1/en not_active Expired
- 1969-11-27 SE SE6916341A patent/SE371566B/xx unknown
- 1969-11-27 BR BR214579/69A patent/BR6914579D0/en unknown
- 1969-11-27 DK DK630669AA patent/DK127452B/en not_active IP Right Cessation
- 1969-11-28 AT AT1114569A patent/AT302709B/en not_active IP Right Cessation
- 1969-11-28 BE BE742387D patent/BE742387A/xx not_active IP Right Cessation
- 1969-11-28 FR FR6941184A patent/FR2024440A1/fr not_active Withdrawn
- 1969-11-28 JP JP44095105A patent/JPS5228786B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| PL87132B1 (en) | 1976-06-30 |
| JPS5228786B1 (en) | 1977-07-28 |
| BE742387A (en) | 1970-05-28 |
| CH521715A (en) | 1972-04-30 |
| DE1811410B2 (en) | 1981-04-16 |
| DK127452B (en) | 1973-11-12 |
| IL33259A0 (en) | 1969-12-31 |
| CS161865B2 (en) | 1975-06-10 |
| NL6917259A (en) | 1970-06-01 |
| DE1811410A1 (en) | 1970-06-25 |
| RO56024A (en) | 1974-02-01 |
| BR6914579D0 (en) | 1973-02-20 |
| DE1811410C3 (en) | 1982-04-22 |
| FI52422C (en) | 1977-09-12 |
| NO127087B (en) | 1973-05-07 |
| SU430527A3 (en) | 1974-05-30 |
| FR2024440A1 (en) | 1970-08-28 |
| SE371566B (en) | 1974-11-25 |
| BG21206A3 (en) | 1976-03-20 |
| GB1265190A (en) | 1972-03-01 |
| IL33259A (en) | 1972-09-28 |
| AT302709B (en) | 1972-10-25 |
| FI52422B (en) | 1977-05-31 |
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