SU85569A1 - Electrolytic tinning method from solutions of a mixture of tin chloride and sodium chloride acidified with hydrochloric acid - Google Patents
Electrolytic tinning method from solutions of a mixture of tin chloride and sodium chloride acidified with hydrochloric acidInfo
- Publication number
- SU85569A1 SU85569A1 SU407258A SU407258A SU85569A1 SU 85569 A1 SU85569 A1 SU 85569A1 SU 407258 A SU407258 A SU 407258A SU 407258 A SU407258 A SU 407258A SU 85569 A1 SU85569 A1 SU 85569A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hydrochloric acid
- solutions
- mixture
- acidified
- chloride
- Prior art date
Links
Landscapes
- Electroplating And Plating Baths Therefor (AREA)
Description
Известны способы электроосаждени олова из электролитов, содержащих слабые концентрации сол ной кнслоты и растворы хлористого олова, а также добавки к составу ваины хлористого натри или хлористого кали .Methods are known for the electroplating of tin from electrolytes containing weak concentrations of hydrochloric acid and solutions of tin chloride, as well as additives to the composition of the vain of sodium chloride or potassium chloride.
Однако эти снособы имеют р д недо статков и направлены в основном на выделение олова из белой жести.However, these prongs have a number of drawbacks and are mainly aimed at separating tin from tin plate.
Оиисываемы способ электролитического лужени из растворов смеси хлористого олова и новаренной соли, подкисленных юол ной кислотой. Отличаетс тем, что в состав электролита дополнительно ввод т фчорпстый натрий и желатину, а электроосаждение ведут при температуре 18-25° и плотпости тока 2-4 перемсшпвапии электролита или 0,5 -1,0 перемешнвапп электролита.The process of electrolytic tinning is determined from solutions of a mixture of tin chloride and novary salt acidified with hydrochloric acid. It is distinguished by the fact that phorpst sodium and gelatin are additionally introduced into the electrolyte, and the electroplating is carried out at a temperature of 18-25 ° and a density of current 2-4 of electrolyte or 0.5-1.0 stirrer electrolyte.
Способ позвол ет получать слои слова толщиной от 0,02 до 0,04 мм с выходам1 по току 95-98%.The method allows to obtain word layers with a thickness from 0.02 to 0.04 mm with current outputs 1 of 95-98%.
Согласно описываемому способу, в состав электролита ввод т: 30--37 г/л хлористого олова, 50-60 г/л фтористого иатрп , 0,5 -1,0 г/л химически чистой сол ной кислоты, 5-7 г/л поваренной соли и 1,0 г/л желатииы .According to the described method, 30--37 g / l of tin chloride, 50-60 g / l of fluoric acid, 0.5-1.0 g / l of chemically pure hydrochloric acid, 5-7 g / l of salt and 1.0 g / l of gelatin.
Прпготовлеппе электролита осуществл етс следующим образом.The preparation of the electrolyte is carried out as follows.
В теплой воде, подкисленной сол пой кислотой, раствор ют хлористое олово. Отдельно, в гор чей воде, с добавкой сол ной кислоты при перемешивании раствор ют фтористый натрий, раствор которого через 3 часа декантируют. Сливают вместе оба полученных раствора и добавл ют туда желатину, предварительно раствореппую в теплой воде. В полученный раствор смеси добавл ют поваропную соль и сол ную кислоту. Кислотность провер ют титрованием, до содержанн 0,5-0,6 г/л свободной сол ной кислоты.Tin chloride is dissolved in warm water, acidified with hydrochloric acid. Separately, in hot water, with the addition of hydrochloric acid, sodium fluoride is dissolved with stirring, and the solution is decanted after 3 hours. Both solutions are poured together and gelatin, previously dissolved in warm water, is added thereto. Cooking salt and hydrochloric acid are added to the resulting solution mixture. Acidity is verified by titration, to a content of 0.5-0.6 g / l of free hydrochloric acid.
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Предмет изобретени Subject invention
Способ электролитического лужени из растворов смеси хлористого олова и поваренной соли, подкисленных сол ной кислотой, отличающ и и с тем, что в состав электролита дополнительно ввод т фтористый натрий и желатину, а электроосаждение ведут при температуре 18-25 и плотности тока а/дм (при перемешивании электролита) или: 0,5-1,0 а/дм (без перемешивани электролита).The method of electrolytic tinning from solutions of a mixture of tin chloride and sodium chloride acidified with hydrochloric acid is also distinguished by the fact that sodium fluoride and gelatin are additionally added to the electrolyte, and electrodeposition is carried out at a temperature of 18-25 and current density a / dm ( when mixing the electrolyte) or: 0.5-1.0 a / dm (without mixing the electrolyte).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU407258A SU85569A1 (en) | 1949-11-18 | 1949-11-18 | Electrolytic tinning method from solutions of a mixture of tin chloride and sodium chloride acidified with hydrochloric acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU407258A SU85569A1 (en) | 1949-11-18 | 1949-11-18 | Electrolytic tinning method from solutions of a mixture of tin chloride and sodium chloride acidified with hydrochloric acid |
Publications (1)
Publication Number | Publication Date |
---|---|
SU85569A1 true SU85569A1 (en) | 1949-11-30 |
Family
ID=48257769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU407258A SU85569A1 (en) | 1949-11-18 | 1949-11-18 | Electrolytic tinning method from solutions of a mixture of tin chloride and sodium chloride acidified with hydrochloric acid |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU85569A1 (en) |
-
1949
- 1949-11-18 SU SU407258A patent/SU85569A1/en active
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