AT60568B - Process for the preparation of anhydrous alkali hydrosulfites. - Google Patents
Process for the preparation of anhydrous alkali hydrosulfites.Info
- Publication number
- AT60568B AT60568B AT60568DA AT60568B AT 60568 B AT60568 B AT 60568B AT 60568D A AT60568D A AT 60568DA AT 60568 B AT60568 B AT 60568B
- Authority
- AT
- Austria
- Prior art keywords
- hydrosulfites
- preparation
- alcohol
- anhydrous alkali
- anhydrous
- Prior art date
Links
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical class OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 4
- 239000003513 alkali Substances 0.000 title claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 235000002639 sodium chloride Nutrition 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical class [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- PENRVBJTRIYHOA-UHFFFAOYSA-L zinc dithionite Chemical compound [Zn+2].[O-]S(=O)S([O-])=O PENRVBJTRIYHOA-UHFFFAOYSA-L 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- -1 methylamine hydrosulfite Chemical compound 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- HEZHYQDYRPUXNJ-UHFFFAOYSA-L potassium dithionite Chemical compound [K+].[K+].[O-]S(=O)S([O-])=O HEZHYQDYRPUXNJ-UHFFFAOYSA-L 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
Landscapes
- Catalysts (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung wasserfreier Alkalihydrosulfite.
Die Hydrosulfite des Natriums und Kaliums sind in Alkohol praktisch genommen unlöslich, da sie noch viel schwerer- löslich sind, als andere Salze dieser Metalle, wie deren Chloride, Nitrate oder Azetate. Von dieser Eigenschaft wird bei vorliegendem Verfahren zur Darstellung von Hydrosulfiten der Alkalimetalle Gebrauch gemacht, indem man mehr oder weniger in Alkohol lösliche Hydrosulsste von Metallen oder von organischen Basen in Alkohol mit solchen Salzen der Alkalimetalle zur Umsetzung bringt, die eine gewisse Löslichkeit in Alkohol besitzen.
Hiebei fällt das natrium- oder Kaliumhydrosulfit in wasserfreiem Zustande als unlöslicher Niederschlag aus, während im Filtrate die vorher an hydroschweflige Säure gebundene Base mit der Säure, die bisher an das Alkalimetall gebunden war, vereinigt in Lösung bleibt.
Beispiel I : Eine Lösung von Methylaminhydrosulfit in Alkohol, wie solche nach Patent Nr. 50856 erhalten wird und die 1 Grammolekül der Base in 1 1 Alkohol gelöst enthält, wird mit überschüssigem festen Kochsalz, etwa 3 bis 4 Molekülen, versetzt und unter Luftabschluss bei gewöhnlicher Temperatur gerührt. Der verwendete Alkohol ist 94- bis 96%ig oder schwächer und löst trotz der Schwerlöslichkeit des Kochsalzes genügende Mengen, um die Umsetzung zu Natriumhydrosulfit zu ermöglichen. Nach einiger Zeit ist die gesamte hydroschweflige Säure in den Niederschlag gegangen ; es wird filtriert, mit Alkohol gewaschen, vom überschüssigen Kochsalz das Natriumhydrosulfit abgeschlemmt, dekantiert und getrocknet.
B e i s p i e l II: Ein Molekül Zinkhydrosulfit (Nabl, Monatshefte für Chemie, 1899, Seite 679) wird mit überschüssigem entwässerten Natriumazetat, z. B. 5 Molsskülen. in einen Soxhletapparat gebracht und mit Alkohol extrahiert. Man benutzt 94-bis 960/, igen Alkohol des Handels, der Zinkhydrosulfit In genügendem : Masse löst. Es geht Zinkazetat mit überschüssigem Natriumazetat in das Filtrat, während im Apparate hochprozentigen und praktisch zinkfreies, wasserfreies Natriumhydrosulfit zurückbleibt.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the preparation of anhydrous alkali hydrosulfites.
The hydrosulfites of sodium and potassium are practically insoluble in alcohol, since they are much less soluble than other salts of these metals, such as their chlorides, nitrates, or acetates. Use is made of this property in the present process for the preparation of hydrosulfites of the alkali metals by reacting more or less alcohol-soluble hydrosulses of metals or of organic bases in alcohol with salts of the alkali metals which have a certain solubility in alcohol.
In this case, the sodium or potassium hydrosulfite precipitates in an anhydrous state as an insoluble precipitate, while in the filtrate the base previously bound to hydrosulphurous acid remains combined in solution with the acid which was previously bound to the alkali metal.
Example I: A solution of methylamine hydrosulfite in alcohol, such as that obtained according to patent no. 50856 and containing 1 gram molecule of the base dissolved in 1 liter of alcohol, is mixed with excess solid common salt, about 3 to 4 molecules, and in the absence of air at normal Temperature stirred. The alcohol used is 94 to 96% strength or weaker and, despite the poor solubility of the common salt, dissolves sufficient quantities to enable the conversion to sodium hydrosulfite. After a while all of the hydrosulphurous acid has gone into the precipitate; It is filtered, washed with alcohol, the sodium hydrosulfite is removed from the excess sodium chloride, decanted and dried.
B e i s p i e l II: One molecule of zinc hydrosulphite (Nabl, monthly magazine for chemistry, 1899, page 679) is mixed with excess dehydrated sodium acetate, e.g. B. 5 Molsskulen. placed in a Soxhlet apparatus and extracted with alcohol. One uses 94 to 960% alcohol of the trade, which dissolves zinc hydrosulphite in sufficient quantity. Zinc acetate and excess sodium acetate go into the filtrate, while high-percentage and practically zinc-free, anhydrous sodium hydrosulfite remains in the apparatus.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT60568T | 1911-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT60568B true AT60568B (en) | 1913-08-11 |
Family
ID=3582424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT60568D AT60568B (en) | 1911-11-10 | 1911-11-10 | Process for the preparation of anhydrous alkali hydrosulfites. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT60568B (en) |
-
1911
- 1911-11-10 AT AT60568D patent/AT60568B/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2256976C2 (en) | Process for separating and purifying polyalkylene polyamine mixtures | |
| AT60568B (en) | Process for the preparation of anhydrous alkali hydrosulfites. | |
| DE223695C (en) | ||
| DE1570310A1 (en) | Process for the production of a complex-forming poly-Schiff base | |
| DE726545C (en) | Process for the production of potash from very dilute solutions, e.g. B. sea water | |
| DE526392C (en) | Process for the production of metal complex compounds | |
| AT162888B (en) | Process for the preparation of new 4-aminobenzenesulfonic ureas | |
| DE249725C (en) | ||
| DE949468C (en) | Process for the production of an aneurine cot | |
| DE273064C (en) | ||
| DE752919C (en) | Process for the production of pure solutions of oxymethanesulfinic acid alkali salts with the simultaneous production of pure zinc oxide | |
| DE360973C (en) | Process for the preparation of triarylstibine hydroxides or oxides | |
| DE854209C (en) | Process for the production of poorly soluble, basic copper compounds | |
| DE584966C (en) | Process for obtaining female sex hormone from urine | |
| DE540983C (en) | Process for obtaining the radioactive isotopes of bismuth | |
| DE588710C (en) | Process for the preparation of compounds containing heavy metals and sulfhydryl groups from keratinates | |
| DE415318C (en) | Process for the preparation of 4-arylamino-1-arylimino-2-naphthoquinones | |
| AT151299B (en) | Process for the production of pigskin green-like compounds. | |
| DE831693C (en) | Process for the production of organic phosphonium compounds | |
| DE954285C (en) | Process for the production of stable and largely water-soluble fumagillin products | |
| DE443339C (en) | Process for the production of water-soluble humic acid derivatives | |
| DE110987C (en) | ||
| DE955510C (en) | Process for the preparation of a heterocyclic quinone | |
| DE637188C (en) | Process for the production of theophylline or theobromine compounds of mercury compounds of the urethane series | |
| DE536275C (en) | Process for the preparation of 2-oxyacetic acid benzimidazolar acid |