DE78309C - Process for the preparation of 1, 2, 4, 6-chlorotrinitrobenzene - Google Patents

Process for the preparation of 1, 2, 4, 6-chlorotrinitrobenzene

Info

Publication number
DE78309C
DE78309C DENDAT78309D DE78309DA DE78309C DE 78309 C DE78309 C DE 78309C DE NDAT78309 D DENDAT78309 D DE NDAT78309D DE 78309D A DE78309D A DE 78309DA DE 78309 C DE78309 C DE 78309C
Authority
DE
Germany
Prior art keywords
chlorotrinitrobenzene
preparation
sulfuric acid
fuming sulfuric
acid
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DENDAT78309D
Other languages
German (de)
Original Assignee
CHEMISCHE FABRIK GRIESHEIM, Griesheim a. M
Publication date
Application granted granted Critical
Publication of DE78309C publication Critical patent/DE78309C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06—Preparation of nitro compounds
    • C07C201/12—Preparation of nitro compounds by reactions not involving the formation of nitro groups

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Das 1, 2, 4, 6 - Chlortrinitrobenzol ist bisher nur nach der Methode von Pisani (Compt. rend. 39, 852) durch die Einwirkung von Phosphorpentachlorid auf Pikrinsäure erhalten worden. . Diese Methode ist zu einer technischen Darstellung des Körpers ungeeignet.The 1, 2, 4, 6-chlorotrinitrobenzene is so far only available according to the Pisani method (Compt. rend. 39, 852) obtained by the action of phosphorus pentachloride on picric acid been. . This method is unsuitable for a technical representation of the body.

Es wurde nun gefunden, dafs man ihn leicht im Grofsen gewinnen kann, wenn man das, i, 2,4-Chlordinitrobenzol in Gegenwart rauchender Schwefelsäure mit starker Salpetersäure behandelt. It has now been found that one can easily win him over on a large scale if one i, 2,4-chlorodonitrobenzene in the presence of fuming Sulfuric acid treated with strong nitric acid.

100 kg Chlordinitrobenzol werden zu diesem Zwecke in 200 kg rauchender Schwefelsäure von 40 pCt. Anhydritgehalt gelöst und mit einem Gemisch von 400 kg Schwefelsäure-Monohydrat und 300 kg starker Salpetersäure allmälig auf 140 bis 1500 erhitzt. Nach dem Erkalten scheidet sich das Chlortrinitrobenzol in Krystallen ab, welche durch Waschen mit Wasser und Umkrystallisiren aus Alkohol oder Benzol gereinigt werden.For this purpose, 100 kg of chlorodinitrobenzene are dissolved in 200 kg of fuming sulfuric acid of 40 pCt. Dissolved anhydrite content and heated gradually to 140 to 150 0 with a mixture of 400 kg of sulfuric acid monohydrate and 300 kg of strong nitric acid. After cooling, the chlorotrinitrobenzene separates out in crystals, which are purified by washing with water and recrystallizing from alcohol or benzene.

Claims (1)

Patent-Anspruch:Patent claim: Das Verfahren der Darstellung von 1, 2, 4, 6 Chlortrinitrobenzol aus 1, 2, 4-Chlordinitrobenzol durch die Einwirkung starker Salpetersäure in Gegenwart rauchender Schwefelsäure bei 140 bis 1500 C.The method of the preparation of 1, 2, 4, 6 Chlortrinitrobenzol from 1, 2, 4-chlorodinitrobenzene by the action of strong nitric acid in the presence of fuming sulfuric acid at 140 to 150 0 C.
DENDAT78309D Process for the preparation of 1, 2, 4, 6-chlorotrinitrobenzene Expired DE78309C (en)

Publications (1)

Publication Number Publication Date
DE78309C true DE78309C (en) 1900-01-01

Family

ID=351042

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT78309D Expired DE78309C (en) Process for the preparation of 1, 2, 4, 6-chlorotrinitrobenzene

Country Status (1)

Country Link
DE (1) DE78309C (en)

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