CH127941A - Process for the preparation of a solid diazo salt. - Google Patents
Process for the preparation of a solid diazo salt.Info
- Publication number
- CH127941A CH127941A CH127941DA CH127941A CH 127941 A CH127941 A CH 127941A CH 127941D A CH127941D A CH 127941DA CH 127941 A CH127941 A CH 127941A
- Authority
- CH
- Switzerland
- Prior art keywords
- diazo salt
- preparation
- solid
- solid diazo
- salt
- Prior art date
Links
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 title claims description 13
- 239000007787 solid Substances 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 5
- RJWBTWIBUIGANW-UHFFFAOYSA-N 4-chlorobenzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=C(Cl)C=C1 RJWBTWIBUIGANW-UHFFFAOYSA-N 0.000 claims description 5
- 239000012266 salt solution Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- -1 chloronitranilines Chemical class 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- BRPSAOUFIJSKOT-UHFFFAOYSA-N 2,3-dichloroaniline Chemical class NC1=CC=CC(Cl)=C1Cl BRPSAOUFIJSKOT-UHFFFAOYSA-N 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- QFCSRGLEMDRBMN-UHFFFAOYSA-N n-(2-methylphenyl)nitramide Chemical class CC1=CC=CC=C1N[N+]([O-])=O QFCSRGLEMDRBMN-UHFFFAOYSA-N 0.000 description 1
- VBEGHXKAFSLLGE-UHFFFAOYSA-N n-phenylnitramide Chemical class [O-][N+](=O)NC1=CC=CC=C1 VBEGHXKAFSLLGE-UHFFFAOYSA-N 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung eines festen Diazosalzes. Es wurde gefunden, dass man durch Um setzung von Diazosalzlösungen mit freier p- Chlorbenzolsulfosäure oder einem ihrer Salze weisse oder gefärbte feste Diazosalze erhält, die sich durch eine gute Abscheidbarkeit bei genügender Löslichkeit und gute Beständig keit auszeichnen.
Zum Beispiel eignen sich für das Verfahren Lösungen der Salze von diazotierten Nitranilinen, Chlornitranilinen, Dichloranilinen, Chlor- und Nitrotoluidinen, Nitroaminophenolalkyläthern, sowie ortho- Aminophenolaryläthern.
Die neuen so erhaltenen festen Diazo- salze sind wertvolle Produkte für die Zwecke der Färberei und Druckerei. Unter Umständen ist es zweckmässig, ihnen geeig nete Verdünnungsmittel und Färbereihilfs- produkte zuzusetzen.
Vorliegendes Patent bezieht sich auf ein Verfahren zur Darstellung eines festen Di- azosalzes durch Umsetzung einer Diazosalz- lösung des 5-Chlor-2-amino-l-toluols mit einem p-chlorbenzolsulfosauren Salz oder auch mit freier p-Chlorbenzolsulfosäure. Das so erhaltene feste Diazosalz stellt ein fast weisses und in Wasser lösliches Pul ver dar.
<I>Beispiel:</I> Eine Diazolösung, hergestellt aus 142 Teilen 5-Chlor-2-amino-l-toluol, 750 Teilen 15 /oiger Salzsäure und 70 Teilen Natrium nitrit, wird mit 258 Teilen p-chlorbenzol- sulfosaurem Natrium verrieben.
Wenn die Umsetzung beendet ist, wird das ausgeschiedene Diazosalz abfiltriert und getrocknet.
Process for the preparation of a solid diazo salt. It has been found that reacting diazo salt solutions with free p-chlorobenzenesulfonic acid or one of its salts gives white or colored solid diazo salts which are distinguished by good separability with sufficient solubility and good stability.
For example, solutions of the salts of diazotized nitroanilines, chloronitranilines, dichloroanilines, chloro- and nitrotoluidines, nitroaminophenol alkyl ethers and ortho-aminophenol aryl ethers are suitable for the process.
The new solid diazo salts obtained in this way are valuable products for the purposes of dyeing and printing. It may be useful to add suitable diluents and dyeing auxiliaries to them.
The present patent relates to a method for the preparation of a solid diazo salt by reacting a diazo salt solution of 5-chloro-2-amino-1-toluene with a p-chlorobenzenesulfonic acid salt or with free p-chlorobenzenesulfonic acid. The solid diazo salt obtained in this way is an almost white powder that is soluble in water.
<I> Example: </I> A diazo solution, prepared from 142 parts of 5-chloro-2-amino-1-toluene, 750 parts of 15% hydrochloric acid and 70 parts of sodium nitrite, is mixed with 258 parts of p-chlorobenzenesulfonic acid rubbed in.
When the reaction has ended, the precipitated diazo salt is filtered off and dried.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE127941X | 1926-02-12 | ||
| CH126405T | 1927-02-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH127941A true CH127941A (en) | 1928-10-01 |
Family
ID=25710666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH127941D CH127941A (en) | 1926-02-12 | 1927-02-11 | Process for the preparation of a solid diazo salt. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH127941A (en) |
-
1927
- 1927-02-11 CH CH127941D patent/CH127941A/en unknown
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