CH150801A - Process for the preparation of a dye of the anthraquinone series. - Google Patents
Process for the preparation of a dye of the anthraquinone series.Info
- Publication number
- CH150801A CH150801A CH150801DA CH150801A CH 150801 A CH150801 A CH 150801A CH 150801D A CH150801D A CH 150801DA CH 150801 A CH150801 A CH 150801A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- diaminoanthraquinone
- dioxy
- anthraquinone series
- preparation
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
- C09B1/50—Amino-hydroxy-anthraquinones; Ethers and esters thereof
- C09B1/503—Amino-hydroxy-anthraquinones; Ethers and esters thereof unsubstituted amino-hydroxy anthraquinone
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 142743. Verfahren zur Herstellung eines Farbstoffes der Anthrachinonreihe. Es wurde gefunden, dass man einen ent- sulfierten Farbstoff der Anthrachinonreihe erhält, wenn man die Leukoverbindung des technischen Gemisches des 1.8-dioxy-4.5- diaminoanthrachinon-2.7-disulfosauren Natri ums und des 1.5-dioxy-4.8-diaminoanthra- chinon-Z.6-disulfosauren Natriums in wäs serigem Medium mit Ammoniak erhitzt,
wo bei sehr wahrscheinlich 1 Mol Ammoniak mit einem 111:o1 der obigen Anthrachinonderivate kondensiert, und das so. erhaltene Kondensa tionsprodukt zum Anthrachinonderivat oxy diert.
Der erhaltene Farbstoff bildet ein dunkles Pulver und löst sich in organischen Lösungs mitteln mit blauer Farbe auf. Er färbt Ace- tatseide nach geeigneter Verpastung blau.
<I>Beispiel:</I> 5,2 Teile des technischen Gemisches des 1 . 8-dioxy-4 . 5- diaminoanthrachinon - 2. 7 - di- sulfosauren Natriums und des 1.5-dioxy-4. 8- diaminoanthrachinon-2.6-disulfosauren Natri ums werden in 25 Teilen einer 24 o/oigen wässerigen Ammoniaklösung mit 4,6 Teilen Natriumhydrosulfit4 Stunden im geschlossenen Gefäss auf 100 erhitzt, hierauf filtriert und gewaschen.
Das Produkt wird durch Erhitzen an.- der Luft oder in Borsäure-Schwefelsäure oxydiert. - -
<B> Additional patent </B> to main patent no. 142743. Process for the production of a dye of the anthraquinone series. It has been found that a desulfurized dye of the anthraquinone series is obtained if the leuco compound of the technical mixture of 1.8-dioxy-4.5-diaminoanthraquinone-2.7-disulfonic acid sodium and 1.5-dioxy-4.8-diaminoanthraquinone-Z. 6-disulfonate of sodium in an aqueous medium heated with ammonia,
where very likely 1 mol of ammonia condenses with a 111: o1 of the above anthraquinone derivatives, and so. obtained condensation product oxidized to the anthraquinone derivative.
The dye obtained forms a dark powder and dissolves in organic solvents with a blue color. It dyes acetate silk blue after suitable pasting.
<I> Example: </I> 5.2 parts of the technical mixture of the 1st 8-dioxy-4. 5- diaminoanthraquinone - 2. 7 - sodium disulfonate and 1.5-dioxy-4. 8-diaminoanthraquinone-2,6-disulfonic acid sodium is heated in 25 parts of a 24% aqueous ammonia solution with 4.6 parts of sodium hydrosulfite for 4 hours in a closed vessel, then filtered and washed.
The product is oxidized by heating in air or in boric acid-sulfuric acid. - -
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH150801T | 1930-04-17 | ||
CH142743T | 1930-04-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH150801A true CH150801A (en) | 1931-11-15 |
Family
ID=25714128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH150801D CH150801A (en) | 1930-04-17 | 1930-04-17 | Process for the preparation of a dye of the anthraquinone series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH150801A (en) |
-
1930
- 1930-04-17 CH CH150801D patent/CH150801A/en unknown
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