CH236997A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH236997A CH236997A CH236997DA CH236997A CH 236997 A CH236997 A CH 236997A CH 236997D A CH236997D A CH 236997DA CH 236997 A CH236997 A CH 236997A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- production
- new azo
- dye
- parts
- Prior art date
Links
- 239000000987 azo dye Substances 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000000975 dye Substances 0.000 claims description 6
- HYWVHZLCPROTFV-UHFFFAOYSA-N N-(3-nitramidophenyl)nitramide Chemical compound [N+](=O)([O-])NC1=CC=CC(=C1)N[N+](=O)[O-] HYWVHZLCPROTFV-UHFFFAOYSA-N 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 229920002955 Art silk Polymers 0.000 claims description 2
- 150000008049 diazo compounds Chemical class 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
- C09B29/0805—Amino benzenes free of acid groups
- C09B29/0807—Amino benzenes free of acid groups characterised by the amino group
- C09B29/0809—Amino benzenes free of acid groups characterised by the amino group substituted amino group
- C09B29/0811—Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino
- C09B29/0813—Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino substituted by OH, O-C(=X)-R, O-C(=X)-X-R, O-R (X being O,S,NR; R being hydrocarbonyl)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines neuen Azofarbstoffes. Es wurde gefunden, dass man einen neuen Azofarbstoff erhält, wenn man die Diazover- bindung des 3,5-Dinitroaminobenzols mit Di- oxäthyl-aminobenzol vereinigt.
Der so erhaltene Farbstoff bildet in trok- kenem Zustande ein rotes Pulver, das sich in organischen Lösungsmitteln mit orangeroter Farbe löst und das Acetatkunstseide aus fei ner Suspension in echten, rotstichig orangen Tönen färbt.
Beispiel: 18,3 Teile 3,5-Dinitroaminobenzol werden in 150 Teilen 30%iger Salzsäure durch Er wärmen gelöst. Man kühlt diese Lösung durch Zugabe von Eis und versetzt dann diese kalte Suspension unter Rühren mit einer Lösung von 7 Teilen Natriumnitrit in etwa 25 Teilen Wasser.
Man bereitet nun eine Lösung von 18,1 Teilen Dioxäthyl-aminobenzol in 50 Teilen Wasser und 50 Teilen 2n-Salzsäure. Diese Lösung versetzt man mit der Diazolösung und führt die Farbstoffbildung durch Zu gabe von etwa 200 Teilen Natriumacetat zu Ende. Man filtriert den Farbstoff ab und wäscht ihn neutral.
Process for the production of a new azo dye. It has been found that a new azo dye is obtained if the diazo compound of 3,5-dinitroaminobenzene is combined with dioxyethyl-aminobenzene.
When dry, the dye thus obtained forms a red powder which dissolves in organic solvents with an orange-red color and dyes the acetate artificial silk from a fine suspension in real, reddish-tinged orange tones.
Example: 18.3 parts of 3,5-dinitroaminobenzene are dissolved in 150 parts of 30% hydrochloric acid by heating. This solution is cooled by adding ice, and a solution of 7 parts of sodium nitrite in about 25 parts of water is then added to this cold suspension, while stirring.
A solution of 18.1 parts of dioxethyl aminobenzene in 50 parts of water and 50 parts of 2N hydrochloric acid is now prepared. This solution is mixed with the diazo solution and the dye formation is completed by adding about 200 parts of sodium acetate. The dye is filtered off and washed neutral.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH236997T | 1942-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH236997A true CH236997A (en) | 1945-03-31 |
Family
ID=4459720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH236997D CH236997A (en) | 1942-08-10 | 1942-08-10 | Process for the production of a new azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH236997A (en) |
-
1942
- 1942-08-10 CH CH236997D patent/CH236997A/en unknown
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