CH162144A - Process for the preparation of zinc iodomethanesulfonate. - Google Patents

Process for the preparation of zinc iodomethanesulfonate.

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Publication number
CH162144A
CH162144A CH162144DA CH162144A CH 162144 A CH162144 A CH 162144A CH 162144D A CH162144D A CH 162144DA CH 162144 A CH162144 A CH 162144A
Authority
CH
Switzerland
Prior art keywords
zinc
preparation
iodomethanesulfonate
acid
iodomethanesulfonic
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH162144A publication Critical patent/CH162144A/en

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Description

  

  Verfahren zur Darstellung von     jodmethansulfonsaurem    Zink.    Gegenstand vorliegender     Erfindung    ist ein  Verfahren zur Darstellung von     jodmethansul-          fonsaurem    Zink, dadurch gekennzeichnet,  dass man     chlormethansulfonsaures    Zink mit       Zinkjodid    umsetzt.  



  Das erhaltene neue Produkt ist ein wert  volles Zwischenprodukt für die Herstellung  von Mitteln zur     Sichtbarmachung    von Hohl  räumen in menschlichen und tierischen Kör  pern mittelst Röntgenstrahlen. Es stellt ein  weisses Kristallpulver dar, das sich sehr leicht  in Wasser, Alkoholen und Aceton löst, in  Äther,     Petroläther    und Benzol jedoch un  löslich ist.  



  <I>Beispiel:</I>  324 Gewichtsteile     chlormetliansulfonsaures     Zink werden mit 319 Gewichtsteilen     Zink-          jodid    in 500 Gewichtsteilen Wasser 20 Stun  den im geschlossenen Gefäss auf 180-185    erhitzt. Hierauf wird die Reaktionsmasse  stark eingedampft und durch Kristallisieren  des Reaktionsproduktes aus verdünntem  Alkohol das Zinksalz der     Jodmethansulfon-          säure    erhalten.

   Hieraus kann man das Na-         triumsalz    der     Jodmethansulfosäure    gewinnen  indem man die Reaktionsmischung mit Soda  heiss umsetzt, vom ausgefallenen Zink  hydroxyd,     bezw.    basischen Zinkkarbonat ab  filtriert und nach Eindampfen der Lösung  der     Natriumsalze    das     jodmethansulfosaure     Natrium durch Kristallisieren aus Methyl  alkohol isoliert. Die freie Säure erhält man  zum Beispiel aus dem     Natriumsalz    durch  Zusatz starker Salzsäure,     Abfiltrieren    des  ausfallenden     Natriumchlorids    und Eindampfen  der Lösung.



  Process for the preparation of zinc iodomethanesulfonate. The present invention relates to a process for the preparation of iodomethanesulphonic acid zinc, characterized in that chloromethanesulphonic acid zinc is reacted with zinc iodide.



  The new product obtained is a valuable intermediate product for the manufacture of means for making cavities in human and animal bodies visible by means of X-rays. It is a white crystal powder that dissolves very easily in water, alcohol and acetone, but is insoluble in ether, petroleum ether and benzene.



  <I> Example: </I> 324 parts by weight of zinc chloride are heated with 319 parts by weight of zinc iodide in 500 parts by weight of water in a closed vessel to 180-185 hours. The reaction mass is then vigorously evaporated and the zinc salt of iodomethanesulfonic acid is obtained by crystallizing the reaction product from dilute alcohol.

   The sodium salt of iodomethanesulfonic acid can be obtained from this by reacting the reaction mixture with hot soda, from the precipitated zinc hydroxide, respectively. basic zinc carbonate is filtered off and, after evaporation of the solution of the sodium salts, the sodium iodomethanesulfonic acid is isolated by crystallization from methyl alcohol. The free acid is obtained, for example, from the sodium salt by adding strong hydrochloric acid, filtering off the precipitating sodium chloride and evaporating the solution.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von jodmethan- sulfonsaurem Zink, dadurch gekennzeichnet, dass man chlormethansulfonsaures Zink mit Zinkjodid umsetzt. Das neue Produkt stellt ein weisses Kristallpulver dar, das sich sehr leicht in Wasser, Alkoholen und Aceton löst, in Äther, Petroläther und Benzol jedoch unlöslich ist. PATENT CLAIM: Process for the preparation of iodomethanesulfonic acid zinc, characterized in that chloromethanesulfonic acid zinc is reacted with zinc iodide. The new product is a white crystal powder that dissolves very easily in water, alcohols and acetone, but is insoluble in ether, petroleum ether and benzene.
CH162144D 1930-06-19 1931-03-30 Process for the preparation of zinc iodomethanesulfonate. CH162144A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE162144X 1930-06-19

Publications (1)

Publication Number Publication Date
CH162144A true CH162144A (en) 1933-06-15

Family

ID=5682533

Family Applications (1)

Application Number Title Priority Date Filing Date
CH162144D CH162144A (en) 1930-06-19 1931-03-30 Process for the preparation of zinc iodomethanesulfonate.

Country Status (1)

Country Link
CH (1) CH162144A (en)

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