SU234813A1 - METHOD OF ELECTROLYTIC GARDENING - Google Patents
METHOD OF ELECTROLYTIC GARDENINGInfo
- Publication number
- SU234813A1 SU234813A1 SU1183884A SU1183884A SU234813A1 SU 234813 A1 SU234813 A1 SU 234813A1 SU 1183884 A SU1183884 A SU 1183884A SU 1183884 A SU1183884 A SU 1183884A SU 234813 A1 SU234813 A1 SU 234813A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- potassium
- electrolytic
- electrolyte
- gardening
- solution
- Prior art date
Links
- 238000010413 gardening Methods 0.000 title 1
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 11
- 239000003792 electrolyte Substances 0.000 description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- 239000011591 potassium Substances 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 4
- 235000019253 formic acid Nutrition 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- GEHJYWRUCIMESM-UHFFFAOYSA-L Sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 235000011054 acetic acid Nutrition 0.000 description 2
- 230000002378 acidificating Effects 0.000 description 2
- -1 chlorine gold Chemical compound 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L na2so4 Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 239000001184 potassium carbonate Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N Aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L Iron(II) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 210000001503 Joints Anatomy 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N Sodium sulfide Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 150000001243 acetic acids Chemical class 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000003638 reducing agent Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- YPPQYORGOMWNMX-UHFFFAOYSA-L sodium phosphonate pentahydrate Chemical compound [Na+].[Na+].[O-]P([O-])=O YPPQYORGOMWNMX-UHFFFAOYSA-L 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid group Chemical class S(N)(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
Description
Известный способ электролитического золочени из кислого электролита не пригоден дл нанесени покрыти на неметаллические материалы ввиду высокой токсичности раствора.The known method of electrolytic gilding from an acidic electrolyte is not suitable for coating non-metallic materials due to the high toxicity of the solution.
Предложенный способ отличаетс от известного тем, что с целью повышени качества покрыти и увеличени стабильности электролита , в раствор ввод т сернистокислый нагрий при следующем соотногпении компонентов (г/л):The proposed method differs from the well-known fact that, in order to improve the quality of the coating and increase the stability of the electrolyte, sulfuric acid heating is introduced into the solution at the following ratio of components (g / l):
золото (в пересчете на металл) 5- 15 железистосинеродистый калий 70-200 углекислый калий25- 75gold (in terms of metal) 5–15 potassium-iron-synodide potassium 70–200 potassium carbonate25–75
муравьина кислота10- 25formic acid 10-25
натрий сернистокислый20- 40sodium sulfate 20-40
и процесс ведут при катодной плотности тока 0,3-5 а/аи2 и температуре 18-60°С.and the process is carried out at a cathode current density of 0.3-5 a / ai2 and a temperature of 18-60 ° C.
Муравьиную кислоту можно замеиить уксусной кислотой.Formic acid can be replaced by acetic acid.
Вместо муравьиной и уксусной кислот можно брать щавелевую, винную, лимонную, сульфаминовую кислоту, в этом случае концентраци замен емой кислоты должна составл ть 25-80 г1л. Электролит готов т из хлорного золота, которое получают растворением металлического золота в царской водке. К раствору хлорного золота приливают нагретый до кипени концентрированный раствор железистосинеродистого кали . Процесс ведут приInstead of formic and acetic acids, it is possible to take oxalic, tartaric, citric, sulfamic acids, in this case the concentration of the replaced acid should be 25-80 g1l. The electrolyte is prepared from chlorine gold, which is obtained by dissolving metallic gold in aqua regia. A concentrated boiling potassium-syneronide solution heated to boiling is added to a solution of chlorine-gold. The process is conducted at
11агреван1И1 и постеиеином перемешивании в течение 15-20 шш.11agrevan1I1 and posteiyinom stirring for 15-20 sh.
Затем к раствору добавл ют холодный раствор углекислого кали и кип т т ие менее 4 час. Полученный осадок гидроокиси железа отфильтровывают. Дл создани кислой среды рП 4,0-6,5 в электролит ввод т органическую кпслоту. Дл стабильности величины рН в электролит ввод т восстановитель сернистокислый натрий или пшофосфит натри .Then a cold solution of potassium carbonate is added to the solution and boiled for less than 4 hours. The precipitate of iron hydroxide is filtered off. To create an acidic environment with a pH of 4.0-6.5, an organic cellulose is introduced into the electrolyte. For the stability of the pH value, the reducing agent sodium sulfite or sodium phosphite is introduced into the electrolyte.
По предлагаемому способу покрыти получают беспористыми. Электролит золочени не оказывает агрессивного воздействи на материал основани печатных схем, фоторезисторы и клеевые соединени .According to the proposed method, coatings are obtained without porous. Gilding electrolyte does not aggressively affect the base material of printed circuits, photoresistors, and glue joints.
Способ пригоден дл производства однослойных и многослойных печатных схем па любой днэлектрической основе.The method is suitable for the production of single-layer and multi-layer printed circuits on any dnelectrical basis.
Предмет изобретени Subject invention
Сиособ электролитического золочени из электролита на основе железистосинеродистого кали , углекислого кали , органической кистоты , отличающийс тем, что, с целью повыu .r.JiT качества покрыти и увеличени станистокислый натрий при следующем соотношении компонентов (г/л): золото (в пересчете на металл) 5- 15 железистосинеродистый калий 70-200 углекислый калий25- 755 муравьина кислота10- 25 натрий сернистокислый20-40 и ироцесс ведут при катодной плотности тока 0,3-5 а/(Эж2 и температуре 18-60°С.Electrolytic gilding method of electrolyte based on ferroso-syrupy potassium, potassium carbonate, organic brush, characterized in that, in order to increase the quality of the coating and increase the sodium sulphide in the following ratio of components (g / l): gold (in terms of metal ) 5-15 potassium iron-synaprotyl potassium 70-200 potassium carbonate25- 755 formic acid 10-25 sodium sulfate 20-40 and the process take place at a cathode current density of 0.3-5 a / (E2 and temperature 18-60 ° С.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU234813A1 true SU234813A1 (en) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069113A (en) * | 1972-07-26 | 1978-01-17 | Oxy Metal Industries Corporation | Electroplating gold alloys and electrolytes therefor |
| US4465564A (en) * | 1983-06-27 | 1984-08-14 | American Chemical & Refining Company, Inc. | Gold plating bath containing tartrate and carbonate salts |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069113A (en) * | 1972-07-26 | 1978-01-17 | Oxy Metal Industries Corporation | Electroplating gold alloys and electrolytes therefor |
| US4465564A (en) * | 1983-06-27 | 1984-08-14 | American Chemical & Refining Company, Inc. | Gold plating bath containing tartrate and carbonate salts |
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