DE130438C - - Google Patents

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Publication number
DE130438C
DE130438C DENDAT130438D DE130438DA DE130438C DE 130438 C DE130438 C DE 130438C DE NDAT130438 D DENDAT130438 D DE NDAT130438D DE 130438D A DE130438D A DE 130438DA DE 130438 C DE130438 C DE 130438C
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DE
Germany
Prior art keywords
nitrophenylenediamine
heating
preparation
under pressure
aqueous ammonia
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.)
Active
Application number
DENDAT130438D
Other languages
German (de)
Publication of DE130438C publication Critical patent/DE130438C/de
Active legal-status Critical Current

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Description

PERLlN. PEDRUCKT IN DER REICHSDRUCKEREt.PEARLS. PRINTED IN THE REICHSDRUCKEREt.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Darstellung von Nitrophenylendiamin, darin bestehend, dafs man p-Nitranilinsulfosäure (NH2 : 5 OaH: NO2 = 1 : 3 : 4) mit wässrigem Ammoniak unter Druck auf Temperaturen über i2o° erhitzt.Process for the preparation of nitrophenylenediamine, consisting in heating p-nitroanilinesulfonic acid (NH 2 : 5 O a H: NO 2 = 1: 3: 4) with aqueous ammonia under pressure to temperatures above 120 °.
DENDAT130438D Active DE130438C (en)

Publications (1)

Publication Number Publication Date
DE130438C true DE130438C (en)

Family

ID=398837

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT130438D Active DE130438C (en)

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Country Link
DE (1) DE130438C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742174A1 (en) * 1977-09-20 1979-03-29 Bayer Ag Process for the preparation of amines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742174A1 (en) * 1977-09-20 1979-03-29 Bayer Ag Process for the preparation of amines

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