AT52690B - Process for the preparation of solutions of nitrogen pentoxide in nitric acid monohydrate. - Google Patents

Process for the preparation of solutions of nitrogen pentoxide in nitric acid monohydrate.

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Publication number
AT52690B
AT52690B AT52690DA AT52690B AT 52690 B AT52690 B AT 52690B AT 52690D A AT52690D A AT 52690DA AT 52690 B AT52690 B AT 52690B
Authority
AT
Austria
Prior art keywords
nitric acid
solutions
acid monohydrate
preparation
nitrogen pentoxide
Prior art date
Application number
Other languages
German (de)
Original Assignee
Elektrochemische Werke Gmbh
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
Application filed by Elektrochemische Werke Gmbh filed Critical Elektrochemische Werke Gmbh
Application granted granted Critical
Publication of AT52690B publication Critical patent/AT52690B/en

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  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung von Lösungen von Stickstoffpentoxyd in Salpetersäuremonohydrat. 



   Es ist bekannt, dass man Stickstoffdioxyd oder salpetrige Säure in Gegenwart von Wasser oder stark verdünnter Salpetersäure elektrolytisch zu   Salpetersäuremonohydrat   oxydieren kann und in dieser Weise Salpetersäure herzustellen vermag. Es hat sich nun gezeigt, dass, wenn man nach der Bildung von Salpetersäuremonohydrat weitere Mengen von Stickstoffdioxyd oder salpetriger Säure einleitet oder in der   Säure   löst und weiter elektrolytisch oxydiert, Stickstoffpcntoxyd entsteht, welches sich in der konzentrierten Salpetersäure zu lösen vermag.

   Durch diese bisher noch nicht bekannte elektrolytische Bildung von   Stickstoffpentoxyd   in Gegenwart von Salpetersäure gelingt es, Lösungen von Stickstoffpentoxyd in Salpetersäuremonohydrat technisch darzustellen, welche bisher nur durch Auflösen von fertigem Stickstoffpentoxyd in   wasserfreier Salpetersäure gewonnen   werden konnten. 



   Beispiel. 



   Zur Herstellung einer Säure, welche beispielsweise 20% N2O5 enthalten soll, löst man 17 kg reines Stickstoffdioxyd in 80 Salpetersäuremonohydrat auf und gibt diese Lösung in den Anodenraum einer Zelle, welcher durch ein Diaphragma vom Kathodenraum getrennt ist. Als Anode wird Platin benützt, welches   bei Verwendung reiner Säuren, wie. ste   bei der Verarbeitung der Produkte der elektrischen Oxydation des   LuftstickstoS's erhaben   werden, nicht angegriffen wird. Die Stromdichte   I) etnigt 2U () Ampere   pro Quadratmeter 
 EMI1.1 
 Stickstoffpentoxyd oxydiert, so dass eine Säure mit 20% N2O5 entsteht. 



   Für die Gewinnung von Säuren mit anderem N2   Os-Gehalt   werden   entsprechende   Mengen Stickstoffdioxyd in Monohydrat aufgelöst und in gleicher Weise verfahren. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the preparation of solutions of nitrogen pentoxide in nitric acid monohydrate.



   It is known that nitrogen dioxide or nitrous acid can be oxidized electrolytically to nitric acid monohydrate in the presence of water or highly dilute nitric acid and nitric acid can be produced in this way. It has now been shown that if, after the formation of nitric acid monohydrate, further amounts of nitrogen dioxide or nitrous acid are introduced or dissolved in the acid and further oxidized electrolytically, nitrogen pentoxide is formed, which is able to dissolve in the concentrated nitric acid.

   This previously unknown electrolytic formation of nitrogen pentoxide in the presence of nitric acid makes it possible to technically produce solutions of nitrogen pentoxide in nitric acid monohydrate, which up to now could only be obtained by dissolving finished nitrogen pentoxide in anhydrous nitric acid.



   Example.



   To produce an acid that should contain 20% N2O5, for example, 17 kg of pure nitrogen dioxide are dissolved in 80 nitric acid monohydrate and this solution is placed in the anode compartment of a cell, which is separated from the cathode compartment by a diaphragm. Platinum is used as the anode, which when using pure acids such as. ste are raised in the processing of the products of the electrical oxidation of atmospheric nitrogen, is not attacked. The current density I) equates to 2U () amperes per square meter
 EMI1.1
 Nitrogen pentoxide is oxidized to form an acid with 20% N2O5.



   To obtain acids with a different N2 Os content, appropriate amounts of nitrogen dioxide are dissolved in monohydrate and proceed in the same way.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : EMI1.2 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: EMI1.2 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT52690D 1910-07-16 1911-06-10 Process for the preparation of solutions of nitrogen pentoxide in nitric acid monohydrate. AT52690B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE52690X 1910-07-16

Publications (1)

Publication Number Publication Date
AT52690B true AT52690B (en) 1912-03-11

Family

ID=5627401

Family Applications (1)

Application Number Title Priority Date Filing Date
AT52690D AT52690B (en) 1910-07-16 1911-06-10 Process for the preparation of solutions of nitrogen pentoxide in nitric acid monohydrate.

Country Status (1)

Country Link
AT (1) AT52690B (en)

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