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 acid

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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
Application number
SU407258A
Other languages
Russian (ru)
Inventor
Я.А. Двойрин
Original Assignee
Я.А. Двойрин
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Я.А. Двойрин filed Critical Я.А. Двойрин
Priority to SU407258A priority Critical patent/SU85569A1/en
Application granted granted Critical
Publication of SU85569A1 publication Critical patent/SU85569A1/en

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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).

SU407258A 1949-11-18 1949-11-18 Electrolytic tinning method from solutions of a mixture of tin chloride and sodium chloride acidified with hydrochloric acid SU85569A1 (en)

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

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Country Status (1)

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SU (1) SU85569A1 (en)

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