SU322410A1 - METHOD OF ELECTROCHEMICAL DEPOSITION OF PARIUM - Google Patents
METHOD OF ELECTROCHEMICAL DEPOSITION OF PARIUMInfo
- Publication number
- SU322410A1 SU322410A1 SU1425793A SU1425793A SU322410A1 SU 322410 A1 SU322410 A1 SU 322410A1 SU 1425793 A SU1425793 A SU 1425793A SU 1425793 A SU1425793 A SU 1425793A SU 322410 A1 SU322410 A1 SU 322410A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- rhodium
- nitrate
- electrochemical deposition
- parium
- electrolyte
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 6
- 238000004070 electrodeposition Methods 0.000 title claims description 4
- 239000003792 electrolyte Substances 0.000 claims description 7
- 229910002651 NO3 Inorganic materials 0.000 claims description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 4
- -1 alkali metal nitrite Chemical class 0.000 claims description 4
- 229910052703 rhodium Inorganic materials 0.000 claims description 4
- 239000010948 rhodium Substances 0.000 claims description 4
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical group [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 150000003283 rhodium Chemical class 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 4
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 3
- VXNYVYJABGOSBX-UHFFFAOYSA-N rhodium(3+);trinitrate Chemical compound [Rh+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VXNYVYJABGOSBX-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- KTEDZFORYFITAF-UHFFFAOYSA-K rhodium(3+);trihydroxide Chemical compound [OH-].[OH-].[OH-].[Rh+3] KTEDZFORYFITAF-UHFFFAOYSA-K 0.000 description 2
- 235000010344 sodium nitrate Nutrition 0.000 description 2
- 239000004317 sodium nitrate Substances 0.000 description 2
- 235000010288 sodium nitrite Nutrition 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- NKZXQZGFOHGPDL-UHFFFAOYSA-K [Rh+3].[O-]N=O.[O-]N=O.[O-]N=O Chemical compound [Rh+3].[O-]N=O.[O-]N=O.[O-]N=O NKZXQZGFOHGPDL-UHFFFAOYSA-K 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 239000001120 potassium sulphate Substances 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Description
Изобретение относитс к области гальванических покрытий, в частности, к электрохимическому осаждению роди .The invention relates to the field of electroplating, in particular, to electrochemical deposition of rhodium.
Известен способ электрохимического осаждени роди из электролита, содержащего соль роди .The known method of electrochemical deposition of rhodium from an electrolyte containing rhodium salt.
Цель нзобретени - улучшить качество покрыти и повысить стабильпость раствора.The goal of the invention is to improve the quality of the coating and increase the stability of the solution.
Дл этого в электролнт ввод т нитрат, нитрит щелочного металла и процесс ведут при 18-80°С, плотности тока 0,5-4 а/дм. Электролит имеет следующий состав, г/л: Нитрат роди (па металл)2-25For this, nitrate, alkali metal nitrite are introduced into the electrolyte and the process is carried out at 18-80 ° C, current density 0.5-4 A / dm. The electrolyte has the following composition, g / l: Rhodium nitrate (metal) 2-25
Нитрат патри 5- 6Pat Nitrate 5-6
Нитрит натри 8-10Sodium nitrite 8-10
В нагретый до 70-80°С раствор треххлористого роди осторожно небольшнми по)аи ми , помешива , ввод т раствор щелочи. Выпавший желтоватый осадок гидроокиси роди после отстаивани заливают дистиллироваппой водой и. промывают от ионов хлора 2%-ным раствором сернокислого кали , а затем от ионов S04 гор чей дистиллированной водой. Гидроокись роди раствор ют в азотной кислоте.In a solution of trichloride rhodi heated to 70-80 ° C, gently add an alkali solution with a small stirring. The precipitated rhodium hydroxide precipitate after settling is poured with distilled water and. washed from chlorine ions with 2% potassium sulphate solution, and then from S04 ions with hot distilled water. Rhodium hydroxide is dissolved in nitric acid.
После выпаривани получают осадок нитрата роди тёмнокрасного цвета. Нитрат роди раствор ют в дистиллированной воде.After evaporation a dark red rhodium nitrate precipitate is obtained. Rhodium nitrate is dissolved in distilled water.
ВВОДЯТ нитрат натри , нитрит натри и довод т объем раствора до 1 л.Sodium nitrate, sodium nitrite is injected and the volume is adjusted to 1 liter.
Электролит устойчив в процессе работы в течение длительного времени.Electrolyte is stable during operation for a long time.
Например, из электролита содержащего, г/л: нитрит роди (на металл) 25, нитрат натри 5, патрит натри 10, при рН 4, температуре 80°С, плотности тока 4 а/дм получают осадки толщиной до 4 мк без микротрещин .For example, from an electrolyte containing, g / l: rhodium nitrite (for metal) 25, sodium nitrate 5, sodium patritis 10, at pH 4, temperature 80 ° C, current densities 4 a / dm receive precipitates up to 4 microns thick without microcracks.
По предложенному способу получают светлые блест щие осадки роди , прочио сцепленные с основой.According to the proposed method, bright, bright precipitates of rhodium, which are adhered to the base, are obtained.
Предмет изобретени Subject invention
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU322410A1 true SU322410A1 (en) |
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