AT45384B - Process for the preparation of colloidal thorbohydrate. - Google Patents
Process for the preparation of colloidal thorbohydrate.Info
- Publication number
- AT45384B AT45384B AT45384DA AT45384B AT 45384 B AT45384 B AT 45384B AT 45384D A AT45384D A AT 45384DA AT 45384 B AT45384 B AT 45384B
- Authority
- AT
- Austria
- Prior art keywords
- colloidal
- preparation
- thorbohydrate
- hydrate
- alkali
- Prior art date
Links
Landscapes
- Colloid Chemistry (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung von kolloidalem Thorhydrat.
Gegenstand vorliegender Erfindung bildet ein Verfahren zur Herstellung von Thorhydrat im kolloidalem Zustande.
Die Erfindung besteht darin, dass zur Herstellung der Hydrate aus den ThoriumSalzen z. B. aus dem Thoriumnitrat oder aus Gemengen derselben in fester Form oder in
EMI1.1
Ein unter dieser Bedingung, also unter Vermeidung eines Überschusses an Alkali hergestelltes Hydrat geht bei der Erwärmung in das Kolloid über.
Ist bei der Herstellung des Hydrates ein Überschuss an Alkali bezw. Ammoniak vorhanden, so zeigt sich, wie der Versuch lehrt, dass das durch Ausfällung erhaltene Hydrat sich bei Erwärmung nicht verändert und sich nicht in Kolloid umwandelt.
Bei Ausführung des Verfahrens wird Ammoniak bezw. Alkali in solchen Mengen zugesetzt, dass kein Thorsalz mehr in Lösung bleibt. Nach Auswaschen des Hydrates von den gebildeten Ammon-resp. Alkalisalzcn wird dasselbe erwärmt, wobei die Umset/ung
EMI1.2
Zustande zu verwenden. Die Erwärmung kann am einracbsten auf einem Wasserbad durchgeführt worden.
Schon bei ca. 70 tritt vollständige Umsetzung des normalen Hydrates in
EMI1.3
Diese Lösung kann in jeder beliebigen Konzentration erhalten werden und ergibt beim vollständigen Eindampfen eine im Wasser lösliche hornartige Masse. l'ATKNT-ANSPRrC'H :
Verfahren zur Herstellung von kolloidalem Thorhydrat, dadurch gekonnzeichnet, daü ein Thoriumsalz oder ein Gemenge solcher mit der äquivalenten Menge Ammoniak bezw.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the preparation of colloidal thorbohydrate.
The subject of the present invention is a process for the production of thorohydrate in the colloidal state.
The invention consists in that for the preparation of the hydrates from the thorium salts z. B. from the thorium nitrate or from mixtures thereof in solid form or in
EMI1.1
A hydrate produced under this condition, i.e. avoiding an excess of alkali, passes into the colloid when heated.
Is an excess of alkali BEZW in the production of the hydrate. If ammonia is present, it can be seen, as the experiment teaches, that the hydrate obtained by precipitation does not change when heated and does not turn into colloid.
When performing the process, ammonia is BEZW. Alkali added in such amounts that no more Thorsalt remains in solution. After washing out the hydrate of the ammonia formed, respectively. Alkali salts are heated, whereby the reaction
EMI1.2
Conditions to use. The easiest way to warm up is on a water bath.
Complete conversion of the normal hydrate occurs at around 70
EMI1.3
This solution can be obtained in any concentration and, on complete evaporation, gives a horn-like mass which is soluble in water. l'ATKNT-ANSPRrC'H:
Process for the production of colloidal thorahydrate, characterized in that a thorium salt or a mixture of such with the equivalent amount of ammonia and / or.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT45384T | 1908-07-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT45384B true AT45384B (en) | 1910-12-10 |
Family
ID=3565311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT45384D AT45384B (en) | 1908-07-10 | 1908-07-10 | Process for the preparation of colloidal thorbohydrate. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT45384B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007032662A1 (en) * | 2007-07-13 | 2009-01-22 | Beiersdorf Ag | Formulation for protecting skin aging caused by intrinsic or extrinsic factors, and for treating itching skin and atopic eczema, has apiogalacturonan or apiogalacturonan containing extract of Zostera marina and one or multiple hydrocolloids |
-
1908
- 1908-07-10 AT AT45384D patent/AT45384B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007032662A1 (en) * | 2007-07-13 | 2009-01-22 | Beiersdorf Ag | Formulation for protecting skin aging caused by intrinsic or extrinsic factors, and for treating itching skin and atopic eczema, has apiogalacturonan or apiogalacturonan containing extract of Zostera marina and one or multiple hydrocolloids |
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