RO86765B1 - Procedeu de obtinere a colorantului trisazoic albastru direct c.i.34.140 - Google Patents
Procedeu de obtinere a colorantului trisazoic albastru direct c.i.34.140Info
- Publication number
- RO86765B1 RO86765B1 RO110936A RO11093683A RO86765B1 RO 86765 B1 RO86765 B1 RO 86765B1 RO 110936 A RO110936 A RO 110936A RO 11093683 A RO11093683 A RO 11093683A RO 86765 B1 RO86765 B1 RO 86765B1
- Authority
- RO
- Romania
- Prior art keywords
- dye
- triazoic
- obtaining
- blue
- disazoic
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 abstract 1
- 238000010790 dilution Methods 0.000 abstract 1
- 239000012895 dilution Substances 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
Landscapes
- Coloring (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a colorantului trisazoic albastru direct C.I.34.140 prin diazotarea unui colorant disazoic cu formula: (vezi formula) si cuplarea în mediu alcalin cu acid 2-amino-5-naftol-silfonic, în care, în scopul evitarii purificarii colorantului disazoic si a pericolului de descompunere a diazo-derivatului prin diluare excesiva se realizeaza o precipitare finala a colorantului de 3,2% cu un adaus de 10% clorura de sodiu fata de volumul solutiei de precipitat, la o temperatura de 30 degree C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO110936A RO86765B1 (ro) | 1983-05-13 | 1983-05-13 | Procedeu de obtinere a colorantului trisazoic albastru direct c.i.34.140 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO110936A RO86765B1 (ro) | 1983-05-13 | 1983-05-13 | Procedeu de obtinere a colorantului trisazoic albastru direct c.i.34.140 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO86765A3 RO86765A3 (ro) | 1985-04-17 |
| RO86765B1 true RO86765B1 (ro) | 1985-05-01 |
Family
ID=20113071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO110936A RO86765B1 (ro) | 1983-05-13 | 1983-05-13 | Procedeu de obtinere a colorantului trisazoic albastru direct c.i.34.140 |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO86765B1 (ro) |
-
1983
- 1983-05-13 RO RO110936A patent/RO86765B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO86765A3 (ro) | 1985-04-17 |
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