CH249009A - Process for the preparation of a metallizable disazo dye. - Google Patents
Process for the preparation of a metallizable disazo dye.Info
- Publication number
- CH249009A CH249009A CH249009DA CH249009A CH 249009 A CH249009 A CH 249009A CH 249009D A CH249009D A CH 249009DA CH 249009 A CH249009 A CH 249009A
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- oxynaphthalene
- disazo dye
- dye
- mole
- 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
- C09B43/00—Preparation of azo dyes from other azo compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 243336. Verfahren zur Herstellung eines metallisierbaren Disazofarbstoffes. Das vorliegende Patent betrifft ein Ver fahren zur Herstellung eines neuen metalli- sierba.ren Disazofarbstoffes und ist dadurch gekennzeichnet, dass man den Kupferkom plex des Disazofarbatoffes aus 1 Mol tetrazo- tierter 3,3'-Dimethoxy-4,4'-diaminodiphenyl, 1.
Mol 1-Oxynaphthalin-3,6-disulfonsäure und 1 Mol 2-Phenylamino-5-oxynaphthalin-7-sul- fonsäure mit konzentrierter Salzsäure ent- kupf ert.
<I>Beispiel:</I> 15 Teile der komplexen Kupferverbin dung des Dis.azofarbstoffes, aus 1 Mol tetrazotierter 3,3'- Dimethoxy - 4,4'- diamino- diphenyl, 1 Mol 1- Oxynaphthalin -<B>3,6</B> - di- sulfonsäure und 1.
Mol 2-Phenylamino-5- oxynaphthalin-7-isulfonsäure werden in etwa 80 Teile konzentrierte Salzsäure bei Raum temperatur gerührt. Nach 1/., Stunde wird filtriert und mit 10%iger Sole na.ch- gewaschen, bis das Filtrat nur noch schwach kongosauer reagiert. Der getrocknete Farb- stoff stellt ein schwarzes Pulver dar, welches sich in. Wasser mit violetter und in konzen trierter Schwefelsäure mit grünlichblauer Farbe löst.
Der neue Farbstoff färbt Zell wolle naehgekupfert in echten blauen Tö nen an.
<B> Additional patent </B> to main patent no. 243336. Process for the production of a metallizable disazo dye. The present patent relates to a process for the production of a new metallized disazo dye and is characterized in that the copper complex of the disazo carbate is obtained from 1 mol of tetrazole 3,3'-dimethoxy-4,4'-diaminodiphenyl, 1 .
1 mole of 1-oxynaphthalene-3,6-disulfonic acid and 1 mole of 2-phenylamino-5-oxynaphthalene-7-sulfonic acid were decoppered with concentrated hydrochloric acid.
<I> Example: </I> 15 parts of the complex copper compound of the disazo dye, from 1 mol of tetrazotized 3,3'-dimethoxy - 4,4'-diamino-diphenyl, 1 mol of 1-oxynaphthalene - <B> 3 , 6 </B> - disulfonic acid and 1.
Mol of 2-phenylamino-5-oxynaphthalene-7-isulfonic acid are stirred in about 80 parts of concentrated hydrochloric acid at room temperature. After 1 /., Hour is filtered and washed with 10% brine Na.ch- until the filtrate only reacts slightly acidic to the Congo. The dried dye is a black powder which dissolves in water with a violet color and in concentrated sulfuric acid with a greenish-blue color.
The new dye stains cell wool, sewn copper, in real blue tones.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH249009T | 1945-02-12 | ||
CH243336T | 1945-02-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH249009A true CH249009A (en) | 1947-05-31 |
Family
ID=25728815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH249009D CH249009A (en) | 1945-02-12 | 1945-02-12 | Process for the preparation of a metallizable disazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH249009A (en) |
-
1945
- 1945-02-12 CH CH249009D patent/CH249009A/en unknown
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