DE423030C - Process for the preparation of easily soluble heavy metal compounds of iminodi- and nitrilotriacetic acid - Google Patents

Process for the preparation of easily soluble heavy metal compounds of iminodi- and nitrilotriacetic acid

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Publication number
DE423030C
DE423030C DEF51856D DEF0051856D DE423030C DE 423030 C DE423030 C DE 423030C DE F51856 D DEF51856 D DE F51856D DE F0051856 D DEF0051856 D DE F0051856D DE 423030 C DE423030 C DE 423030C
Authority
DE
Germany
Prior art keywords
heavy metal
metal compounds
iminodi
preparation
nitrilotriacetic 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
DEF51856D
Other languages
German (de)
Inventor
Dr Hans Hahl
Dr Walter Kropp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Farbenfabriken Vorm Friedr Bayer and 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
Application filed by Farbenfabriken Vorm Friedr Bayer and Co filed Critical Farbenfabriken Vorm Friedr Bayer and Co
Priority to DEF51856D priority Critical patent/DE423030C/en
Application granted granted Critical
Publication of DE423030C publication Critical patent/DE423030C/en
Expired legal-status Critical Current

Links

Description

Verfahren zur Darstellung von leichtlöslichen Schwermetallverbindungen der Iminodi- und der Nitrilotriessigsäure. Es wurde gefunden, daß man durch Behandeln von Iminodiessigsäure (Diglykolamidsäure i bzw. der Nitrilotriessigsäure (Trig@ykolarridsäure) mit Schwermetallverbindungen bei Gegenwart von alkalisch wirkenden 'Mitteln, wie \atriumhydroxyd, Natriumcarbonat oder Calciümhvdroxyd. zu leichtlöslichen salzartigen Verbindungen dieser Säuren gelangt, die sowohl Alkali- bziv. Erdalkali- als auch Schwermetalle enthalten.Process for the preparation of easily soluble heavy metal compounds iminodi- and nitrilotriacetic acid. It has been found that by treating of iminodiacetic acid (diglycolamic acid i or nitrilotriacetic acid (triglycolaric acid) with heavy metal compounds in the presence of alkaline agents such as Atrium hydroxide, sodium carbonate or calcium hydroxide. to easily soluble salt-like Compounds of these acids arrives, which are both alkali and. Alkaline earth as well Contains heavy metals.

Die neuen Verbindungen sind leicht in Wasser mit neutraler bzw. schwach alkalischer Reaktion löslich und eignen sich wegen dieser Ei;enschaften und wegen ihrer baktericiden Wirkung zur therapeutischen Verwendung.The new compounds are light in water with neutral or weak alkaline reaction and are suitable because of these properties and because of their bactericidal effect for therapeutic use.

Beispiel r.Example r.

:io Gewichtsteile \itrilotriessigsäure werden mit 3,= Gewichtsteilen trockenem \atriumcarbonat in ;o Geuzchtsteilen Wasser und 5 Gewichtsteilen ZVismuthydroxyd (BiCOH, erwärmt, bis das «'ismuthydroxy d aufgelöst ist. Die filtrierte alkalische Lösung wird mit etwas \i-,riIotriessigsäure neutralisiert und zur Trockne eingedampft. Man erhält so das Natriumwismutsalz der \itrilotriessigsäure als farbloses Pulver. das sich mit neutraler Reaktion leich: in Wasser auflöst. Der Wistnutgehalt beträgt etwa 2o Prozent. - Beispiel z.: io parts by weight of \ itrilotriacetic acid become 3, = parts by weight dry atrium carbonate in; o parts by weight of water and 5 parts by weight of vismuth hydroxide (BiCOH, heated until the ismuthydroxy d is dissolved. The filtered alkaline Solution is neutralized with a little triacetic acid and evaporated to dryness. The sodium bismuth salt of trilotriacetic acid is thus obtained as a colorless powder. which easily dissolves with a neutral reaction: in water. The Wistnut content is about 20 percent. - Example z.

13 Gewichtsteile Iminodiessigsäure werden in roo Gewichtsteilen -Normal-Natronlauge warm gelöst, dann gibt man so lange frisch gefälltes Quecksilberoxyd zu. als sich noch etwas auflöst. Man filtriert nochmals, konzentriert die Lösung und fällt schließlich mit Alkohol. Man erhält so ein weißes, in Wasser mit alkalischer - Reaktion leichtlösliches Pulver. Beim Erhitzen über i 2o- tritt Zersetzung ein. Der Quecksilbergehalt beträgt etwa 38 Prozent.13 parts by weight of iminodiacetic acid are dissolved in roo parts by weight of normal sodium hydroxide solution Dissolved warm, then freshly precipitated mercury oxide is added for a long time. than yourself still dissolves something. It is filtered again, the solution concentrated and finally precipitated with alcohol. This gives a white product which is readily soluble in water with an alkaline reaction Powder. When heated above i 2o, decomposition occurs. The mercury content is about 38 percent.

Beispiel 3. Example 3.

57,3 Gewichtsteile Nitrilotriessigsäure werden zu einer Aufschlämmung von 16,8 Gewichtsteilen Calciumoxyd in etwa roo bis tSo Gewichtsteile -Wasser gegeben und aufgekocht, dann setzt man -#V ismuthvdroxvd im I`berschuß zu und erhält während 15 Minuten im Sieden; gegebenenfalls neutralisiert man dann noch mit etwas Kalkwasser, filtriert und fällt mit einem großen L`berschuli Alkohol. -Nach dem Absaugen wäscht man mit Äther na,--lh und trocknet. Die so erhaltene Calciumwismutverbindung der \itrilotriessigsäure Bleichte in ihren Eigenschaften dem in Beispiel r beschriebenen Produkt.57.3 parts by weight of nitrilotriacetic acid are added and roo to a slurry of 16.8 parts by weight of calcium oxide in approximately up TSO parts by weight -water boiled, then sets one - # V ismuthvdroxvd in I`berschuß and obtains for 1 5 minutes in boiling; if necessary, neutralize it with a little lime water, filter and fall with a large L`berschuli alcohol. -After the suction one washes with ether na, - lh and dries. The calcium bismuth compound of trilotriacetic acid thus obtained bleaches in its properties the product described in example r.

Claims (1)

PATENT-ANsPRUcH: Verfahren zur Darstellung von leichtlöslichen SchwermetallveZbindungen der Iminodi- und der Nitrilotriessigsäure, dadurch gekennzeichnet, daß man auf diese Säuren bei Gegenwart von Alkali- oder Erdall;alihydrosyden oder -carbonaten Schwermetallverbindungen einwirken läßt.PATENT CLAIM: Process for the preparation of easily soluble heavy metal compounds the iminodi- and nitrilotriacetic acid, characterized in that one on this Acids in the presence of alkali or earth metals; alihydrosides or carbonates, heavy metal compounds can act.
DEF51856D 1922-05-21 1922-05-21 Process for the preparation of easily soluble heavy metal compounds of iminodi- and nitrilotriacetic acid Expired DE423030C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF51856D DE423030C (en) 1922-05-21 1922-05-21 Process for the preparation of easily soluble heavy metal compounds of iminodi- and nitrilotriacetic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF51856D DE423030C (en) 1922-05-21 1922-05-21 Process for the preparation of easily soluble heavy metal compounds of iminodi- and nitrilotriacetic acid

Publications (1)

Publication Number Publication Date
DE423030C true DE423030C (en) 1925-12-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEF51856D Expired DE423030C (en) 1922-05-21 1922-05-21 Process for the preparation of easily soluble heavy metal compounds of iminodi- and nitrilotriacetic acid

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767727C (en) * 1939-12-06 1953-04-16 Hydrierwerke A G Deutsche Process for the preparation of polybasic, nitrogen-containing, heterocyclic carboxylic acids or their functional derivatives
DE758209C (en) * 1939-12-06 1954-08-02 Hydrierwerke A G Deutsche Process for the preparation of polycarboxylic acids of the pyrrolidine and piperidine series or their functional derivatives
DE966893C (en) * 1953-04-20 1957-09-19 Ciba Geigy Plant protection products to remedy iron deficiency diseases

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767727C (en) * 1939-12-06 1953-04-16 Hydrierwerke A G Deutsche Process for the preparation of polybasic, nitrogen-containing, heterocyclic carboxylic acids or their functional derivatives
DE758209C (en) * 1939-12-06 1954-08-02 Hydrierwerke A G Deutsche Process for the preparation of polycarboxylic acids of the pyrrolidine and piperidine series or their functional derivatives
DE966893C (en) * 1953-04-20 1957-09-19 Ciba Geigy Plant protection products to remedy iron deficiency diseases

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