CH98183A - Process for the preparation of a silver alkosol with an organic protective body. - Google Patents
Process for the preparation of a silver alkosol with an organic protective body.Info
- Publication number
- CH98183A CH98183A CH98183DA CH98183A CH 98183 A CH98183 A CH 98183A CH 98183D A CH98183D A CH 98183DA CH 98183 A CH98183 A CH 98183A
- Authority
- CH
- Switzerland
- Prior art keywords
- silver
- alcohol
- alkosol
- protective body
- organic protective
- Prior art date
Links
- 229910052709 silver Inorganic materials 0.000 title claims description 9
- 239000004332 silver Substances 0.000 title claims description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 6
- 230000001681 protective effect Effects 0.000 title claims description 6
- 238000002360 preparation method Methods 0.000 title claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 230000001476 alcoholic effect Effects 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910001923 silver oxide Inorganic materials 0.000 claims description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical group CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229940035429 isobutyl alcohol Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- -1 silver alcohols Chemical class 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- OABYVIYXWMZFFJ-ZUHYDKSRSA-M sodium glycocholate Chemical compound [Na+].C([C@H]1C[C@H]2O)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(=O)NCC([O-])=O)C)[C@@]2(C)[C@@H](O)C1 OABYVIYXWMZFFJ-ZUHYDKSRSA-M 0.000 description 1
- JAJWGJBVLPIOOH-IZYKLYLVSA-M sodium taurocholate Chemical compound [Na+].C([C@H]1C[C@H]2O)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(=O)NCCS([O-])(=O)=O)C)[C@@]2(C)[C@@H](O)C1 JAJWGJBVLPIOOH-IZYKLYLVSA-M 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Landscapes
- Colloid Chemistry (AREA)
Description
Procédé pour la préparation d'un alcosol d'argent à corps protecteur organique. Des solutions alcooliques diluées d'argent ont été obtenues à l'aide de l'électricité, par exemple par des décharges oscillatoires.
D'au tre part, E. t1. Schneider (Ber. deutsch chem. Ges. Vol. 25. page 1166 (1892), a obtenu des alcosols d'argent en dialysant de l'hydro sol d'argent pendant plusieurs mois contre de l'alcool absolu ou encore en filtrant un Hydro sol précipité à l'alcool sur des plaques de terre poreuse en maintenant soigneusement une pression déterminée. Tous ces procédés sont impraticables quand il s'agit de la pré paration industrielle des a.lcosols d'argent.
Or, on peut obtenir un alcosol d'argent de façon très simple, en chauffant de l'oxyde d'argent avec la solution acidulée alcoolique d'un corps protecteur organique (stabiliseur) en présence d'hydrogène. Il est avantageux (le suspendre de l'oxyde d'argent dans la so lution alcoolique et de faire passer l'hydro gène dans cette solution. Dans ces conditions, l'oxyde se dissout peu à peu. Pour aller plus vite, on peut employer un excès d'oxyde d'ar gent et arrêter l'opération quand on a atteint la concentration désirée.
L'oxyde non dissous peut être séparé du liquide et sera directe ment utilisé à nouveau. La solution alcoo lique d'argent obtenue est stable.- L'alcosol peut être obtenu sous forme so lide par .évaporation de l'alcool ou en préci pitant à l'éther. Il forme alors des lamelles brillantes @de couleur foncée ou une poudre légère brune.
L'aleosol solide peut être redissous clans l'alcool absolu.
Si le corps protecteur organique employé est soluble à l'eau, l'alcosol solide est en même temps un hydrosol. Ces solutions ont une réaction neutre. L'alcosol doit être utilisé dans la thérapeutique et dans la photographie. Exerfaple <I>1:</I> De l'oxyde d'argent exempt de carbonate est ajouté à une solution de résine dans l'al cool .absolu, faiblement acide; on fait barbo ter à 65 (le l'hydrogène, de façon que l'oxyde est constamment en suspension; l'-oxyde se dissout et on obtient une solution d'un rouge foncé.
Exefïaple <I>2:</I> Une solution de 20 parties de taurocholate de soude technique (fer tauri depuratum sic- cum) dans<B>100</B> parties d'alcool à 98 % est acidulée faiblement à l'acide acétique et chauffée à 60 ; on introduit en agitant bien, 3 parties d'oxyde d'argent et on fait passer un courant faible d'hydrogène, jusqu'à ce que tout l'oxyde soit dissous.
On peut obtenir l'alcosol sous forme so lide en précipitant avec 200 parties d'éther. Exe.yrrple <I>3:</I> Un kilo de glycocholate de soude est dis sous dans 6 litres d'alcool à 98 %; on ajoute 4 cm' d'acide nitrique (p. sp. 1, 4.), on in troduit l'oxyde obtenu par précipitation de 300 gr de nitrate d'argent, oxyde qu'on. lave à l'alcool au préalable. On fait barboter de l'hydrogène pendant 4 heures à environ 60 en agitant vivement.
On laisse déposer 12 heures et on décante. Après évaporation de l'alcool, il reste un résidu solide contenant environ 15 0!o d'ar- -ent: ce résidu est soluble dans l'eau, l'alcool pur, l'alcool propylique, l'alcool butylique normal, l'alcool iso-butylique, l'alcool amy- lique etc. ainsi que dans des mélanges de ces alcools.
Process for the preparation of a silver alkosol with an organic protective body. Dilute alcoholic solutions of silver have been obtained with the aid of electricity, for example by oscillatory discharges.
On the other hand, E. t1. Schneider (Ber. Deutsch chem. Ges. Vol. 25. page 1166 (1892), obtained silver alcosols by dialysing silver hydro sol for several months against absolute alcohol or by filtering a Hydro sol precipitated with alcohol on plates of porous earth while carefully maintaining a determined pressure All these processes are impracticable when it comes to the industrial preparation of silver alcohols.
However, a silver alkosol can be obtained very simply, by heating silver oxide with the acidulated alcoholic solution of an organic protective body (stabilizer) in the presence of hydrogen. It is advantageous (to suspend it from the silver oxide in the alcoholic solution and to pass the hydrogen in this solution. Under these conditions, the oxide dissolves little by little. To go faster, we can use an excess of silver oxide and stop the operation when the desired concentration has been reached.
Undissolved oxide can be separated from the liquid and will be used directly again. The alcoholic silver solution obtained is stable. The alkosol can be obtained in solid form by evaporation of the alcohol or by precipitation with ether. It then forms shiny strips @ dark color or a light brown powder.
Solid aleosol can be redissolved in absolute alcohol.
If the organic protective body employed is soluble in water, the solid alcoholsol is at the same time a hydrosol. These solutions have a neutral reaction. The alcosol should be used in therapy and in photography. Exerfaple <I> 1: </I> Carbonate-free silver oxide is added to a resin solution in absolute, weakly acidic alcohol; the hydrogen is bubbled at 65 (so that the oxide is constantly in suspension; the oxide dissolves and a dark red solution is obtained.
Example <I> 2: </I> A solution of 20 parts of technical sodium taurocholate (fer tauri depuratum sic- cum) in <B> 100 </B> parts of 98% alcohol is weakly acidified with acetic acid and heated to 60; 3 parts of silver oxide are introduced, with good stirring, and a weak stream of hydrogen is passed, until all the oxide is dissolved.
The alkosol can be obtained in solid form by precipitating with 200 parts of ether. Exe.yrrple <I> 3: </I> One kilo of sodium glycocholate is dissolved in 6 liters of 98% alcohol; 4 cm 'of nitric acid (p. sp. 1, 4.) are added, the oxide obtained by precipitation of 300 g of silver nitrate is introduced, which is oxidized. wash with alcohol beforehand. Hydrogen is bubbled through for 4 hours at about 60 hours with vigorous stirring.
Leave for 12 hours and decant. After evaporation of the alcohol, there remains a solid residue containing about 15 0! O ar- -ent: this residue is soluble in water, pure alcohol, propyl alcohol, normal butyl alcohol, isobutyl alcohol, amyl alcohol etc. as well as in mixtures of these alcohols.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE98183X | 1921-01-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH98183A true CH98183A (en) | 1923-03-16 |
Family
ID=5646675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH98183D CH98183A (en) | 1921-01-05 | 1921-11-25 | Process for the preparation of a silver alkosol with an organic protective body. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH98183A (en) |
-
1921
- 1921-11-25 CH CH98183D patent/CH98183A/en unknown
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