CH154055A - Process for the preparation of a sulfur dye. - Google Patents

Process for the preparation of a sulfur dye.

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Publication number
CH154055A
CH154055A CH154055DA CH154055A CH 154055 A CH154055 A CH 154055A CH 154055D A CH154055D A CH 154055DA CH 154055 A CH154055 A CH 154055A
Authority
CH
Switzerland
Prior art keywords
preparation
sulfur dye
dye
sulfur
weight
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH154055A publication Critical patent/CH154055A/en

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Description

  

  Verfahren zur Darstellung eines     Sehwefelfarbstoffes.       Gegenstand dieses     Zusatzpatentes    ist ein  Verfahren zur Darstellung eines Schwefel  farbstoffes, welches dadurch gekennzeichnet  ist, dass man     3-Amino-6-oxyphenazirr    in Ge  genwart von     Molybdänsäure    und Kupfersulfat  mit Polysulfiden verschmilzt.    <I>Beispiel:</I>  50 Gewichtsteile Schwefelnatrium     krist.     



  und 30 Gewichtsteile Schwefel werden ge  schmolzen, mit 1,5 Gewichtsteilen     Molybdän-          säure    versetzt und eine Lösung von 1,5 Ge  wichtsteilen Kupfersulfat zugegeben. In diese  Schmelze trägt man allmählich 10 Gewichts  teile     3-Amino-6-oxyphenazin    ein und erhitzt  so lange unter Rückfuss, bis die     Farbstoffbil-          dung    beendet ist. Die Rohschmelze kann    entweder unmittelbar zum Färben verwandt  werden, oder der Farbstoff kann durch Aus  fällen mit Säure oder Luft auf die übliche  Weise isoliert werden. Er färbt     Baumwolle     in schönen rötlichen Tönen an.



  Process for the preparation of a sulfur dye. The subject of this additional patent is a process for the preparation of a sulfur dye, which is characterized in that 3-amino-6-oxyphenazir is fused with polysulfides in the presence of molybdic acid and copper sulfate. <I> Example: </I> 50 parts by weight of sodium sulphide crystall.



  and 30 parts by weight of sulfur are melted, 1.5 parts by weight of molybdic acid are added and a solution of 1.5 parts by weight of copper sulfate is added. 10 parts by weight of 3-amino-6-oxyphenazine are gradually introduced into this melt and refluxed until dye formation has ended. The raw melt can either be used directly for dyeing, or the dye can be isolated in the usual way by precipitating with acid or air. It stains cotton in beautiful reddish tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Schwefel farbstoffes, dadurch gekennzeichnet, dass man 3-Anrino-6-oxypherrazirr in Gegenwart von Molybdänsäure und Kupfersulfat mit Poly sulfiden verschmilzt. Der. so erhaltene Farbstoff färbt Barun- wolle in schönen rötlichen Tönen an. Claim: Process for the preparation of a sulfur dye, characterized in that 3-anrino-6-oxypherrazirrer is fused with poly sulfides in the presence of molybdic acid and copper sulfate. The. The dye obtained in this way stains barun wool in beautiful reddish tones.
CH154055D 1929-11-19 1930-11-18 Process for the preparation of a sulfur dye. CH154055A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE154055X 1929-11-19
CH151334T 1930-11-18

Publications (1)

Publication Number Publication Date
CH154055A true CH154055A (en) 1932-04-15

Family

ID=25715798

Family Applications (1)

Application Number Title Priority Date Filing Date
CH154055D CH154055A (en) 1929-11-19 1930-11-18 Process for the preparation of a sulfur dye.

Country Status (1)

Country Link
CH (1) CH154055A (en)

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