CH218887A - Process for the preparation of a new hydrazine derivative. - Google Patents
Process for the preparation of a new hydrazine derivative.Info
- Publication number
- CH218887A CH218887A CH218887DA CH218887A CH 218887 A CH218887 A CH 218887A CH 218887D A CH218887D A CH 218887DA CH 218887 A CH218887 A CH 218887A
- Authority
- CH
- Switzerland
- Prior art keywords
- hydrazine derivative
- preparation
- new hydrazine
- mol
- new
- Prior art date
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines neuen Hydrazinderivates. Es wurde gefunden, dass man zu einem neuen Hydrazinderivat gelangt, wenn man 1 Mol des aus techn. Stearinsäure erhält lichen a-Stearoyl-p-phenylhydrazins mit etwa 3 Mol Glycid umsetzt. Die Umsetzung mit dem Glycid wird zweckmässig bei einer<B>1000</B> übersteigenden Temperatur, zum Beispiel bei 140-150', vorgenommen.
Das neue Hydrazinderivat ist eine bräun lich gefärbte, feste Masse, deren Löslichkeit in Wasser bei etwa 60-7011 ein Maximum erreicht. Es besitzt eine ausgesprochen egali sierende Wirkung in Färbebädern, die saure Wollfarbstoffe enthalten, und fällt Sulfo- gruppen enthaltende Farbstoffe aus deren Lösungen nicht aus.
Es kam) als Textilhilfs- stoff, zum Beispiel als Egalisiermittel, An wendung finden. <I>Beispiel;</I> 3,8 Gewichtsteile a-Stearoyl-p-phenylhy- drazin (hergestellt zum Beispiel durch Er- hitzen von techn. Stearinsäure mit Phenyl- hydrazin auf 160 ) werden mit 2,4 Gewichts teilen Glycid so lange unter Rühren auf 140-15W1 (Innentemperatur) erhitzt,
bis eine Probe der Reaktionsmasse sich in Wasser unter Bildung einer nur, schwach getrübten Lösung auflöst. Nach dem Erkalten stellt die Reaktionsmasse eine bräunlich gefärbte, feste Masse dar, deren Löslichkeit in Wasser bei zirka <B>60-700</B> ein Maximum besitzt, in dem sowohl unterhalb wie oberhalb dieser Temperatur sich wieder milchige Trübungen bilden.
Das neue Produkt besitzt ausge sprochen egalisierende Wirkung in Färbe bädern, die saure Wollfarbstoffe enthalten, und die Lösungen desselben fällen Sulfogrup- pen enthaltende Farbstoffe nicht.
Process for the preparation of a new hydrazine derivative. It has been found that a new hydrazine derivative is obtained if 1 mol of the from techn. Stearic acid is obtained by converting a-stearoyl-p-phenylhydrazine with about 3 mol of glycide. The reaction with the glycide is expediently carried out at a temperature exceeding 1000, for example 140-150 °.
The new hydrazine derivative is a brownish colored, solid mass whose solubility in water reaches a maximum at around 60-7011. It has a pronounced leveling effect in dyebaths that contain acidic wool dyes, and dyes containing sulfo groups do not precipitate from their solutions.
It was used as a textile additive, for example as a leveling agent. <I> Example; </I> 3.8 parts by weight of α-stearoyl-p-phenylhydrazine (produced for example by heating technical stearic acid with phenylhydrazine to 160) are combined with 2.4 parts by weight of glycid so heated to 140-15W1 (internal temperature) for a long time while stirring,
until a sample of the reaction mass dissolves in water to form a solution that is only slightly cloudy. After cooling, the reaction mass is a brownish-colored, solid mass, the solubility of which in water has a maximum at around <B> 60-700 </B>, in which milky cloudiness forms again both below and above this temperature.
The new product has a pronounced leveling effect in dye baths that contain acidic wool dyes, and the solutions of the same do not precipitate dyes containing sulfo groups.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH218887T | 1940-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH218887A true CH218887A (en) | 1942-01-15 |
Family
ID=4450868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH218887D CH218887A (en) | 1940-12-24 | 1940-12-24 | Process for the preparation of a new hydrazine derivative. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH218887A (en) |
-
1940
- 1940-12-24 CH CH218887D patent/CH218887A/en unknown
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