SU76733A1 - The method of obtaining pure silver - Google Patents
The method of obtaining pure silverInfo
- Publication number
- SU76733A1 SU76733A1 SU388493A SU388493A SU76733A1 SU 76733 A1 SU76733 A1 SU 76733A1 SU 388493 A SU388493 A SU 388493A SU 388493 A SU388493 A SU 388493A SU 76733 A1 SU76733 A1 SU 76733A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- silver
- hydroquinone
- pure silver
- obtaining pure
- silver nitrate
- Prior art date
Links
Landscapes
- Powder Metallurgy (AREA)
Description
Дл п/р иготовленв серебр ной пасты, упоггребл ющейс при вжигании серебра в керамику, требуетс хиМ1Ически чистое серебро, обладающее дисперсностью, близкой к молекул рной , и способиое хорошо лудитьс .For segmented silver paste, which is absorbed when silver is sticking into ceramics, it is necessary to have chemically pure silver, which has a dispersion close to molecular, and is good for tincture.
Согласно изобретению, предлагаетс способ п олучени серебра, обладающего дисперсностью близкой к молекул рной, путем восстановлени нитрата серебра гидрохиноном в присутствии растворов аммиака , тростникового рафинированного сахара и желатины.According to the invention, a method is proposed for producing silver having a dispersion close to molecular, by reducing silver nitrate with hydroquinone in the presence of ammonia solutions, cane refined sugar and gelatin.
Пример. В 25%-ный водный раствор тростникового рафинированного сахара приливают по капл м 50%-ный раствор нитрата серебра, содержащий около 0,1 % желатины. Палученную Смесь нагревают до 80°С и добавл ют к ней сначала около Л по объему 25%-Ного расTBiOp a аммиака, а затем 50%-ный водный раствор гидрохинона в пропорций 1:1 по офнощению к нитрату серебра. Вс смесь реагирует около 30 мин., после чего ее нагревают до 80°С и раствор сл.ивают с осадка серебра. Осадок серебра, предварительно ОТМ|Ытый гор- чейExample. In a 25% aqueous solution of cane refined sugar, a 50% solution of silver nitrate containing about 0.1% gelatin is added dropwise to it drop by drop. The mixture is heated to 80 ° C and first about 25% by volume of ammonia is added to 25% of TiBiOp and then a 50% aqueous solution of hydroquinone in proportions 1: 1 of silver nitrate. The whole mixture reacts for about 30 minutes, after which it is heated to 80 ° C and the solution is added from the silver precipitate. Silver precipitate, preliminarily OTM | Yty bitter
Отв. редактор М. М. АкишинEd. editor M. M. Akishin
естиллированной водой, высушивают при температуре 100-110°С.distilled water, dried at a temperature of 100-110 ° C.
Хинон, полученный в процессе кислени гидрохинона, известными методами снова перевод т в гидрохинон .The quinone obtained in the process of acidification of hydroquinone using known methods is again converted to hydroquinone.
Полученное серебро вл етс химически чистым, обладает высокой дисперсностью и после вжигани в керамику хорошо лудитс .The obtained silver is chemically pure, has a high dispersion, and after firing into ceramics it is well-finished.
Предмет изобретени Subject invention
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU388493A SU76733A1 (en) | 1948-12-09 | 1948-12-09 | The method of obtaining pure silver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU388493A SU76733A1 (en) | 1948-12-09 | 1948-12-09 | The method of obtaining pure silver |
Publications (1)
Publication Number | Publication Date |
---|---|
SU76733A1 true SU76733A1 (en) | 1949-11-30 |
Family
ID=48251526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU388493A SU76733A1 (en) | 1948-12-09 | 1948-12-09 | The method of obtaining pure silver |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU76733A1 (en) |
-
1948
- 1948-12-09 SU SU388493A patent/SU76733A1/en active
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