GB321580A - Improvements in the manufacture of salts of the urea of mamino-benzoyl-m-amino-p-toluyl-1-naphthylamine-4:6:8-trisulphonic acid - Google Patents
Improvements in the manufacture of salts of the urea of mamino-benzoyl-m-amino-p-toluyl-1-naphthylamine-4:6:8-trisulphonic acidInfo
- Publication number
- GB321580A GB321580A GB3591328A GB3591328A GB321580A GB 321580 A GB321580 A GB 321580A GB 3591328 A GB3591328 A GB 3591328A GB 3591328 A GB3591328 A GB 3591328A GB 321580 A GB321580 A GB 321580A
- Authority
- GB
- United Kingdom
- Prior art keywords
- salts
- urea
- naphthylamine
- amino
- mamino
- 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
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/42—Separation; Purification; Stabilisation; Use of additives
- C07C303/44—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
321,580. Dyson, G. M., and Renshaw, A. Dec. 5, 1928. Salts of a urea derivative.-The neutral alkali salts of the urea of m-aminobenzoyl-m-amino-ptoluyl-1-naphthylamine-4 : 6 : 8-trisulphonic acid described in Specification 314,909 are purified by conversion into the lead salt using a soluble basic lead compounds such as lead acetate, decomposing the lead salt with mineral acid, and neutralizing the liberated acid with caustic alkali, alkali carbonate or ammonia. An example is given.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3591328A GB321580A (en) | 1928-12-05 | 1928-12-05 | Improvements in the manufacture of salts of the urea of mamino-benzoyl-m-amino-p-toluyl-1-naphthylamine-4:6:8-trisulphonic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3591328A GB321580A (en) | 1928-12-05 | 1928-12-05 | Improvements in the manufacture of salts of the urea of mamino-benzoyl-m-amino-p-toluyl-1-naphthylamine-4:6:8-trisulphonic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
GB321580A true GB321580A (en) | 1929-11-14 |
Family
ID=10382937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3591328A Expired GB321580A (en) | 1928-12-05 | 1928-12-05 | Improvements in the manufacture of salts of the urea of mamino-benzoyl-m-amino-p-toluyl-1-naphthylamine-4:6:8-trisulphonic acid |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB321580A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE920668C (en) * | 1949-03-28 | 1954-11-29 | Ici Ltd | Process for the manufacture of a herbicide in a stable, highly concentrated form |
-
1928
- 1928-12-05 GB GB3591328A patent/GB321580A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE920668C (en) * | 1949-03-28 | 1954-11-29 | Ici Ltd | Process for the manufacture of a herbicide in a stable, highly concentrated form |
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