AT24655B - Process for the preparation of 1,5- and 1,8-nitroanthraquinone sulfonic acid. - Google Patents

Process for the preparation of 1,5- and 1,8-nitroanthraquinone sulfonic acid.

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Publication number
AT24655B
AT24655B AT24655DA AT24655B AT 24655 B AT24655 B AT 24655B AT 24655D A AT24655D A AT 24655DA AT 24655 B AT24655 B AT 24655B
Authority
AT
Austria
Prior art keywords
sep
sulfonic acid
nitroanthraquinone
preparation
red
Prior art date
Application number
Other languages
German (de)
Original Assignee
Farbenfab Vorm Bayer F & Co
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
Priority claimed from DE1903164293D external-priority patent/DE164293C/de
Application filed by Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT24655B publication Critical patent/AT24655B/en

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

Description

  

   <Desc/Clms Page number 1> 
 
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<tb> 
<tb> Methylamidoanthrachinonsulfosäure <SEP> 1.5 <SEP> 1.8
<tb> Lösung <SEP> in <SEP> H2 <SEP> O <SEP> blaustichig <SEP> rot <SEP> blaustichig <SEP> rot
<tb> kenz. <SEP> H2 <SEP> SO4 <SEP> schwach <SEP> gelblich <SEP> schwach <SEP> gelblich
<tb> 45% <SEP> Gleum <SEP> rot <SEP> violettrot
<tb> ! <SEP> Eiseas <SEP> : <SEP> g <SEP> rot <SEP> rot
<tb> 
 

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Statt in Schwefelsäure kann man beispielsweise auch in   hochprozentiger Salpeter-   säure allein oder in   Salpetersituremonohydrat   nitrieren, wie im folgenden Beispiel erläutert wird. 



   Beispiel 2. 40 kg   Anthrachinon-&alpha;-monosulfosaures Kalium werden   in 100 kg Salpetersäure von   480 usé.   eingetragen und das Ganze unter Rühren zehn Stunden lang auf 80-900 erwärmt. Man versetzt bierauf mit 5-10 kg Wasser und lässt erkalten, wobei sich die   1.5-Nitroanthrachinonsulfosäure abscheidet.   Dieselbe wird abfiltriert und aus dem Filtrat durch weiteren Wasserzusatz die 1.   8-NitroBulfosäure   abgeschieden.



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<tb>
<tb> Methylamidoanthraquinone sulfonic acid <SEP> 1.5 <SEP> 1.8
<tb> Solution <SEP> in <SEP> H2 <SEP> O <SEP> bluish tint <SEP> red <SEP> bluish tint <SEP> red
<tb> kenz. <SEP> H2 <SEP> SO4 <SEP> weakly <SEP> yellowish <SEP> weakly <SEP> yellowish
<tb> 45% <SEP> Gleum <SEP> red <SEP> violet red
<tb>! <SEP> Eiseas <SEP>: <SEP> g <SEP> red <SEP> red
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Instead of in sulfuric acid, for example, nitration can also be carried out in high-percentage nitric acid alone or in nitric acid monohydrate, as is explained in the following example.



   Example 2. 40 kg of anthraquinone-α-monosulfonate of potassium are dissolved in 100 kg of nitric acid of 480 usé. entered and the whole thing heated to 80-900 for ten hours while stirring. 5-10 kg of water are added to the beer and the mixture is allowed to cool, the 1,5-nitroanthraquinone sulfonic acid separating out. The same is filtered off and the 1,8-nitro-sulfonic acid is separated off from the filtrate by adding more water.

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Darstellung von 1. 5- und 1.8-Nitroanthrachinonsulfosäure, darin bestehend, dass man Anthrachinon-&alpha;-sulfosäure mit nitrierenden Agentien behandelt. PATENT CLAIM: Process for the preparation of 1.5- and 1.8-nitroanthraquinone sulfonic acid, consisting in treating anthraquinone-α-sulfonic acid with nitrating agents.
AT24655D 1903-01-17 1905-09-25 Process for the preparation of 1,5- and 1,8-nitroanthraquinone sulfonic acid. AT24655B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1903164293D DE164293C (en) 1903-01-17

Publications (1)

Publication Number Publication Date
AT24655B true AT24655B (en) 1906-06-25

Family

ID=5684222

Family Applications (1)

Application Number Title Priority Date Filing Date
AT24655D AT24655B (en) 1903-01-17 1905-09-25 Process for the preparation of 1,5- and 1,8-nitroanthraquinone sulfonic acid.

Country Status (1)

Country Link
AT (1) AT24655B (en)

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