SU23911A1 - The method of preparation of high-grade colloidal silver - Google Patents
The method of preparation of high-grade colloidal silverInfo
- Publication number
- SU23911A1 SU23911A1 SU9212A SU9212A SU23911A1 SU 23911 A1 SU23911 A1 SU 23911A1 SU 9212 A SU9212 A SU 9212A SU 9212 A SU9212 A SU 9212A SU 23911 A1 SU23911 A1 SU 23911A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- colloidal silver
- preparation
- silver
- grade colloidal
- grade
- Prior art date
Links
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title description 11
- 238000000034 method Methods 0.000 title description 6
- 238000002360 preparation method Methods 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000000502 dialysis Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 150000003839 salts Chemical class 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
- 150000007513 acids Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Substances [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
Landscapes
- Colloid Chemistry (AREA)
Description
Все способы получени высокопроцентного коллоидного серебра с помощью лизальбиново- или протальбиновонатриевых солей свод тс к тому, что первоначально получают продукт с меньшим содержанием серебра, а затем , повторным осаждением разбавленными кислотами с последующим растворением осадка с помощью едких щелочей и диализом, продукт обогащаетс серебром до желательных пределов .Предлагаемый способ, вл ющийс видоизменением способа РааГ , имеет целью устранить необходимость в пользованни метрдом осаждени разбавленными кислотами что сокращает операций при производстве и допускает ведение выпаривани npiH температурах сначала вод ной бани, а затем до бСР, дава вполне растворимый продукт с со,держанием от 72 до 76% серебра.All methods for producing high-grade colloidal silver using lysalbine or protalbinovatonie salts reduces to the fact that the product is initially obtained with a lower silver content, and then by repeated precipitation with dilute acids, followed by dissolving the precipitate with caustic alkali and dialysis, the product is enriched with silver to the desired limits. The proposed method, which is a modification of the method RaaG, aims to eliminate the need for using a dilution acid dilution meter and reducing operations during production and allows maintenance evaporation temperatures npiH first water bath, and then to the IWU to give completely soluble product with, holding from 72 to 76% silver.
Опытами автора установлено, что в накальной стадии выпаривани перви ных разбавленных растворов высокопроцентного коллоидного серебра, подученных после диализа, всегда о0раэуютс незначительные количества не растворимой модификации, котора , в виде осадка или мути, садитс на дно. В случае неудалени означенного осадка присутствие его в выпариваемой жидкости содействует нарастанию новых количеств не растворимой модификации , при чем это нарастание становитс интенсивнее по мере увеличени концентрации коллоидного серебра. Если же своевременно удалить означенный осадок обычными способами, то дальнейшее его по вление, при осторожном продолжении выпаривани при температуре до 60 прекращаетс . Наиболее подход щий момент дл удалени осадка наступает тогда, когда выпар15ваема жидкость достигает примерно 8-10%-ного содержани серебра.It has been established by the author's experiments that in the incandescent stage of evaporation of the initial diluted solutions of high-grade colloidal silver, obtained after dialysis, there always are small amounts of an insoluble modification, which, as a precipitate or turbidity, sits on the bottom. In the event that the aforementioned sediment is not removed, its presence in the evaporated liquid promotes the growth of new amounts of an insoluble modification, and this increase becomes more intense with increasing concentration of colloidal silver. If, however, the precipitate is removed in a timely manner by conventional methods, its further occurrence, with careful continuation of evaporation at a temperature of up to 60, is stopped. The most suitable moment to remove the precipitate occurs when the evaporated liquid reaches about 8-10% silver.
Процесс приготовлени коллоидного серебра по предлагаемому автором способу сводитс к следующему, Краствору 10 лизальбиновонатриевой соли в 250муб. см воды прибавл ют раствор 40г азотно-кислого серебра в 120 куб, см воды и 100 куб.см 15%-ного раствора едкого натра, при нагревании на вод ной бане и беспрерывном помешивании. Нагревание и помешивание продолжают до тех пор, пока проба жидкости не перестанет давать реакцию на коллоидальную окись серебра. По окончании реакции жидкость разбавл етс , примерно, равным объемом воды, охлаждаетс и подвергаетс диализу дл полного удалени избытка щелочи и солей. Полученный после диализа свободный от электроли-, тов раствор коллоидного серебра, освобожденный от образовавшегосй во врем The process of preparation of colloidal silver according to the method proposed by the author is as follows, Kastyuru 10 of lysalbic acid sodium salt in 250 cups. cm of water add a solution of 40 g of silver nitrate to 120 cc, cm of water and 100 cc of a 15% aqueous solution of caustic soda, when heated in a water bath and stirring continuously. Heating and stirring are continued until the liquid sample ceases to give a reaction to colloidal silver oxide. At the end of the reaction, the liquid is diluted with an approximately equal volume of water, cooled and dialyzed to completely remove excess alkali and salts. The electrolyte-free solution of dialloid colloidal silver obtained after dialysis, freed from the formed during
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU9212A SU23911A1 (en) | 1926-07-01 | 1926-07-01 | The method of preparation of high-grade colloidal silver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU9212A SU23911A1 (en) | 1926-07-01 | 1926-07-01 | The method of preparation of high-grade colloidal silver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU23911A1 true SU23911A1 (en) | 1931-10-31 |
Family
ID=48342354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU9212A SU23911A1 (en) | 1926-07-01 | 1926-07-01 | The method of preparation of high-grade colloidal silver |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU23911A1 (en) |
-
1926
- 1926-07-01 SU SU9212A patent/SU23911A1/en active
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