CH162035A - Process for the preparation of a non-coloring thio derivative of chlorophenol. - Google Patents
Process for the preparation of a non-coloring thio derivative of chlorophenol.Info
- Publication number
- CH162035A CH162035A CH162035DA CH162035A CH 162035 A CH162035 A CH 162035A CH 162035D A CH162035D A CH 162035DA CH 162035 A CH162035 A CH 162035A
- Authority
- CH
- Switzerland
- Prior art keywords
- chlorophenol
- coloring
- preparation
- thio derivative
- allowed
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines nichtfärbenden Thloderivates des Chlorphenols. Gegenstand dieses Zusatzpatentes ist ein Verfahren zur Herstellung eines nichtfärben den Thioderivates des Chlorphenols, welches dadurch gekennzeichnet ist, dass man auf Chlor phenol eine Halogenschwefelverbindung in Ge genwart einer Zinnverbindung einwirken lässt. <I>Beispiel:</I> In 54 Gewichtsteile geschmolzenem Chlor phenol werden 20 Gewichtsteile Zinnchlorür suspendiert.
Man lässt 70 Gewichtsteile Chlor schwefel zutropfen, rührt in der Wärme (bei einer Temperatur von etwa 50-100') noch einige Zeit nach und gibt langsam 100 Ge wichtsteile 35 o/oige Natronlauge zu. Man kocht nun etwa 25 Stunden unter Rückfluss, lässt abkühlen und trennt das ausgeschiedene Produkt von der überstehenden Flüssigkeit. Dann löst man es in Wasser und Natron lauge, filtriert und dampft das Filtrat im Vakuum zur Trockne. Das so erhaltene Produkt ist wasserlöslich und wird aus dieser Lösung durch verdünnte Säuren gefällt.
Es kann direkt als Beize und Reservierungsmittel verwendetwerden. Das Reservierungsvermögen zum Beispiel ist sehr stark und nicht von der Temperatur des Färbebades abhängig.
Process for the preparation of a non-coloring chloride derivative of chlorophenol. The subject of this additional patent is a process for the production of a non-coloring thio derivative of chlorophenol, which is characterized in that a halosulfur compound is allowed to act on chlorophenol in the presence of a tin compound. <I> Example: </I> 20 parts by weight of tin chloride are suspended in 54 parts by weight of molten chlorophenol.
70 parts by weight of chlorine sulfur are added dropwise, the mixture is stirred in the warm (at a temperature of about 50-100 °) for some time and 100 parts by weight of 35% sodium hydroxide solution are slowly added. The mixture is then refluxed for about 25 hours, allowed to cool and the precipitated product is separated from the supernatant liquid. It is then dissolved in water and sodium hydroxide solution, filtered and the filtrate is evaporated to dryness in a vacuum. The product obtained in this way is water-soluble and is precipitated from this solution using dilute acids.
It can be used directly as a stain and reservation agent. The ability to reserve, for example, is very strong and does not depend on the temperature of the dye bath.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE162035X | 1931-01-26 | ||
CH159153T | 1932-01-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH162035A true CH162035A (en) | 1933-05-31 |
Family
ID=25717201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH162035D CH162035A (en) | 1931-01-26 | 1932-01-25 | Process for the preparation of a non-coloring thio derivative of chlorophenol. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH162035A (en) |
-
1932
- 1932-01-25 CH CH162035D patent/CH162035A/en unknown
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