CH164426A - Process for the preparation of sodium iodomethane sulfonic acid. - Google Patents
Process for the preparation of sodium iodomethane sulfonic acid.Info
- Publication number
- CH164426A CH164426A CH164426DA CH164426A CH 164426 A CH164426 A CH 164426A CH 164426D A CH164426D A CH 164426DA CH 164426 A CH164426 A CH 164426A
- Authority
- CH
- Switzerland
- Prior art keywords
- sodium
- preparation
- iodomethane
- sulfonic acid
- acid
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung von jodmethansulfonsaurem Natrium. Gegenstand vorliegender Erfindung ist ein Verfahren zur Darstellung des bereits be kannten jodmethansulfonsauren Natriums, dadurch gekennzeichnet, dass man chlor- methansulfonsaures Natrium mit Natrium- jodid in einem Lösungsmittel erhitzt.
Zweckmässig verwendet man als Lösungs mittel Wasser oder eine organische Flüssig keit, wie Alkohol. Das Produkt ist ein wert volles Mittel zur Siehtbarmachung von Hohl räumen in menschlichen und tierischen Kör pern mittelst Röntgenstrahlen. <I>Beispiel 1:
</I> 125,5 Gewichtsteile chlormethansulfon- saures Natrium werden in 305 Gewichts teilen Wasser gelöst, mit 150 Gewichtsteilen wasserfreiem Natriumjodid versetzt und 20 Stunden in geschlossenem Gefäss auf etwa <B>190'</B> erhitzt. Hierauf wird die Reaktions masse zur Trockne verdampft und aus dem Rückstand das gebildete jodmethansulfon- .aure Natrium mit Methylalkohol ausgezo gen.
Es ist identisch mit dem nach Beispiel 1 des .schweiz. Hauptpatentes Nr. 152606 be schriebenen jodmethansulfonsauren Natrium. An Stelle des Wassers kann man auch orga nische Lösungsmittel, wie zum Beispiel Al kohol, verwenden.
Beispiel <I>2:</I> 15 Gewichtsteile ehlormethansulfonsaures Natrium und 15 Gewichtsteile Natriumjodid werden in 30 Gewichtsteilen Ätbylenglykol 10 Stunden auf 190-200 erhitzt, wobei nach anfänglicher Lösung allmählich Aus scheidung von Natriumchlorid eintritt. Hier nach lässt man erkalten, versetzt den Kri stallbrei mit Aceton, saugt ab und kristalli siert das zurückbleibende jodmethansulfon- saure Natrium aus Methylalkohol um.
Process for the preparation of sodium iodomethane sulfonic acid. The present invention relates to a process for preparing the already known sodium iodomethanesulfonic acid, characterized in that sodium chloromethanesulfonic acid is heated with sodium iodide in a solvent.
It is useful to use water or an organic liquid such as alcohol as the solvent. The product is a valuable means of making cavities in human and animal bodies visible by means of X-rays. <I> Example 1:
125.5 parts by weight of sodium chloromethanesulfonic acid are dissolved in 305 parts by weight of water, 150 parts by weight of anhydrous sodium iodide are added and the mixture is heated to about 190 for 20 hours in a closed vessel. The reaction mass is then evaporated to dryness and the sodium iodomethanesulfonic acid formed is extracted with methyl alcohol from the residue.
It is identical to that according to example 1 of .schweiz. Main patent No. 152606 be written sodium iodomethanesulfonic acid. Instead of water, you can also use organic solvents such as alcohol.
Example <I> 2: </I> 15 parts by weight of sodium chloride and 15 parts by weight of sodium iodide are heated to 190-200 in 30 parts by weight of ethylene glycol for 10 hours, with sodium chloride gradually separating out after the initial solution. After this, it is allowed to cool, acetone is added to the crystal pulp, suction filtered and the remaining sodium iodomethanesulfonic acid recrystallizes from methyl alcohol.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE164426X | 1930-05-03 | ||
| CH162144T | 1931-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH164426A true CH164426A (en) | 1933-09-30 |
Family
ID=25717535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH164426D CH164426A (en) | 1930-05-03 | 1931-03-30 | Process for the preparation of sodium iodomethane sulfonic acid. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH164426A (en) |
-
1931
- 1931-03-30 CH CH164426D patent/CH164426A/en unknown
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