AT27319B - Process for the preparation of dyes of the anthracene series. - Google Patents

Process for the preparation of dyes of the anthracene series.

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Publication number
AT27319B
AT27319B AT27319DA AT27319B AT 27319 B AT27319 B AT 27319B AT 27319D A AT27319D A AT 27319DA AT 27319 B AT27319 B AT 27319B
Authority
AT
Austria
Prior art keywords
dyes
preparation
anthracene series
anthracene
series
Prior art date
Application number
Other languages
German (de)
Original Assignee
Basf 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 Basf Ag filed Critical Basf Ag
Application granted granted Critical
Publication of AT27319B publication Critical patent/AT27319B/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

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 Farbstoff heiss gewaschen, er gelangt am besten in Teigform zur Verwendung. 



   In trockenem Zustande bildet er ein dunkelviolettes Pulver, das beim Reiben Kupferglanz annimmt ; in verdünnten Sauren und Alkalien   ist er unlöslich   ; in konzentrierter   Schwefelsäure   löst er sich mit trüb-violetter Farbe ; in organischen Lösungsmitteln schwer löslich, lässt er sich doch aus kochendem Chinolin in feinen Nadeln krystallisieren und löst sich alsdann in konzentrierter Schwefelsäure mit rein violetter Farbe. Mit alkalischer   Hydrosulfit. 1ösung   liefert der Farbstoff beim Erwärmen eine prachtvoll fuchsinrot-fluores- 
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Analoge Farbstoffe werden erhalten'durch Verschmelzen der übrigen nach dem Verfahren der   obgenannten Patentschrift @ erhältlichen Benzanthronderivate   mit   kaustischen ; Alkalien.   



   B e i s p i e l IV. 10 g, Benznaphtanthron werden in 30 g festem Ätzalkali, gelöst in 30 m3 absolutem Alkohol, während einer Viertelstunde auf 150  C   und : hierauf   eine weitere Viertelstunde auf 165 -170  C erhitzt. Die Schmelze wird mit Wasser ausgekocht, der Rückstand als Paste zum Färben verwendet. Ausbeute 90%. Mit Hydrosulfit und Natron gefärbt, erhält lah auf Baumwolle ein   rötliches   Blau von hervorragender Chlor-   pohtheit,   
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 Dye washed hot, it is best used in dough form.



   When dry it forms a dark violet powder which, when rubbed, takes on a copper luster; it is insoluble in dilute acids and alkalis; in concentrated sulfuric acid it dissolves with a cloudy violet color; Hardly soluble in organic solvents, since it can be crystallized in fine needles from boiling quinoline and then dissolves in concentrated sulfuric acid with a purely violet color. With alkaline hydrosulfite. When heated, the dye delivers a splendid fuchsin-red fluorescent
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Analogous dyes are obtained by fusing the other benzanthrone derivatives obtainable by the process of the above-mentioned patent specification with caustic; Alkalis.



   Example IV. 10 g of benznaphtanthrone are heated in 30 g of solid caustic alkali, dissolved in 30 m3 of absolute alcohol, for a quarter of an hour to 150 ° C and then for a further quarter of an hour to 165-170 ° C. The melt is boiled with water, the residue used as a paste for coloring. Yield 90%. Dyed with hydrosulphite and baking soda, on cotton it takes on a reddish blue of excellent chlorine-pithiness,
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AT27319D 1904-12-31 1904-12-31 Process for the preparation of dyes of the anthracene series. AT27319B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT27319T 1904-12-31

Publications (1)

Publication Number Publication Date
AT27319B true AT27319B (en) 1907-01-25

Family

ID=3539404

Family Applications (1)

Application Number Title Priority Date Filing Date
AT27319D AT27319B (en) 1904-12-31 1904-12-31 Process for the preparation of dyes of the anthracene series.

Country Status (1)

Country Link
AT (1) AT27319B (en)

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