ES190840A3 - PROCEDURE FOR THE MANUFACTURE OF CUBA AZULES COLORANTS OF THE SULFINICA SERIES, FROM THE PRODUCTS OBTAINED BY CONDENSATION OF NITROSOPHENOLS AND CARBAZOLE, IN THE PRESENCE OF CONCENTRATED SULFURIC ACID, OR ITS LEATHER-COMPOSED - Google Patents
PROCEDURE FOR THE MANUFACTURE OF CUBA AZULES COLORANTS OF THE SULFINICA SERIES, FROM THE PRODUCTS OBTAINED BY CONDENSATION OF NITROSOPHENOLS AND CARBAZOLE, IN THE PRESENCE OF CONCENTRATED SULFURIC ACID, OR ITS LEATHER-COMPOSEDInfo
- Publication number
- ES190840A3 ES190840A3 ES0190840A ES190840A ES190840A3 ES 190840 A3 ES190840 A3 ES 190840A3 ES 0190840 A ES0190840 A ES 0190840A ES 190840 A ES190840 A ES 190840A ES 190840 A3 ES190840 A3 ES 190840A3
- Authority
- ES
- Spain
- Prior art keywords
- nitrosophenols
- carbazole
- condensation
- procedure
- manufacture
- 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
Landscapes
- Coloring (AREA)
Abstract
Procedimiento para fabricación de colorantes cuba azules de la serie sulfínica partiendo de los productos obtenidos por condensación de los nitrosofenoles y carbazol en presencia de ácido sulfúrico concentrado o bien de sus leuco-compuestos consistente en que la fusión bruta obtenida por calentamiento de estos cuerpos con polisulfuros según el método usual se extrae con solución de sulfuro sódico para eliminar la porción fácilmente soluble en sulfuros alcalinos en solución diluida.Procedure for the manufacture of blue vat dyes of the sulfinic series starting from the products obtained by condensation of nitrosophenols and carbazole in the presence of concentrated sulfuric acid or its leuco-compounds, consisting in that the crude melt obtained by heating these bodies with polysulfides according to the usual method, it is extracted with sodium sulphide solution to remove the portion easily soluble in alkali sulphides in dilute solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES0190840A ES190840A3 (en) | 1949-12-10 | 1949-12-10 | PROCEDURE FOR THE MANUFACTURE OF CUBA AZULES COLORANTS OF THE SULFINICA SERIES, FROM THE PRODUCTS OBTAINED BY CONDENSATION OF NITROSOPHENOLS AND CARBAZOLE, IN THE PRESENCE OF CONCENTRATED SULFURIC ACID, OR ITS LEATHER-COMPOSED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES0190840A ES190840A3 (en) | 1949-12-10 | 1949-12-10 | PROCEDURE FOR THE MANUFACTURE OF CUBA AZULES COLORANTS OF THE SULFINICA SERIES, FROM THE PRODUCTS OBTAINED BY CONDENSATION OF NITROSOPHENOLS AND CARBAZOLE, IN THE PRESENCE OF CONCENTRATED SULFURIC ACID, OR ITS LEATHER-COMPOSED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES190840A3 true ES190840A3 (en) | 1950-02-16 |
Family
ID=37827767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0190840A Expired ES190840A3 (en) | 1949-12-10 | 1949-12-10 | PROCEDURE FOR THE MANUFACTURE OF CUBA AZULES COLORANTS OF THE SULFINICA SERIES, FROM THE PRODUCTS OBTAINED BY CONDENSATION OF NITROSOPHENOLS AND CARBAZOLE, IN THE PRESENCE OF CONCENTRATED SULFURIC ACID, OR ITS LEATHER-COMPOSED |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES190840A3 (en) |
-
1949
- 1949-12-10 ES ES0190840A patent/ES190840A3/en not_active Expired
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