CS225432B1 - Electrolyte for cathodic precipitation of the nickel from water solutions - Google Patents
Electrolyte for cathodic precipitation of the nickel from water solutions Download PDFInfo
- Publication number
- CS225432B1 CS225432B1 CS213882A CS213882A CS225432B1 CS 225432 B1 CS225432 B1 CS 225432B1 CS 213882 A CS213882 A CS 213882A CS 213882 A CS213882 A CS 213882A CS 225432 B1 CS225432 B1 CS 225432B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- nickel
- electrolyte
- water solutions
- water
- electrolytes
- Prior art date
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims description 22
- 239000003792 electrolyte Substances 0.000 title claims description 15
- 229910052759 nickel Inorganic materials 0.000 title claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 7
- 229910001868 water Inorganic materials 0.000 title claims description 7
- 238000001556 precipitation Methods 0.000 title 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- JWWCMTHTYFLEPN-UHFFFAOYSA-M lithium;2-sulfooxybenzoate Chemical compound [Li+].OS(=O)(=O)OC1=CC=CC=C1C([O-])=O JWWCMTHTYFLEPN-UHFFFAOYSA-M 0.000 claims description 2
- 150000002815 nickel Chemical class 0.000 claims 1
- 238000000576 coating method Methods 0.000 description 6
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 4
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 3
- IIACRCGMVDHOTQ-UHFFFAOYSA-M sulfamate Chemical compound NS([O-])(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-M 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- MQGUNFXXOHNHIH-UHFFFAOYSA-L S(=O)(=O)(O)OC=1C(C(=O)[O-])=CC=CC1.[Mg+2].S(=O)(=O)(O)OC=1C(C(=O)[O-])=CC=CC1 Chemical compound S(=O)(=O)(O)OC=1C(C(=O)[O-])=CC=CC1.[Mg+2].S(=O)(=O)(O)OC=1C(C(=O)[O-])=CC=CC1 MQGUNFXXOHNHIH-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 235000010338 boric acid Nutrition 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 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
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- FWQSEYDTJNGUII-UHFFFAOYSA-N S(=O)(=O)(O)S(O)(O)=O Chemical compound S(=O)(=O)(O)S(O)(O)=O FWQSEYDTJNGUII-UHFFFAOYSA-N 0.000 description 1
- -1 ammonium ions Chemical class 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 150000003842 bromide salts Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid group Chemical class C(CC(O)(C(=O)O)CC(=O)O)(=O)O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005323 electroforming Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000743 fusible alloy Inorganic materials 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000004694 iodide salts Chemical class 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- XEVDKCXWWCBLRU-UHFFFAOYSA-L nickel(2+);2-sulfooxybenzoate Chemical compound [Ni+2].OS(=O)(=O)OC1=CC=CC=C1C([O-])=O.OS(=O)(=O)OC1=CC=CC=C1C([O-])=O XEVDKCXWWCBLRU-UHFFFAOYSA-L 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- PCTXBFQNMDKOSP-UHFFFAOYSA-M sodium;(2-carboxyphenyl) sulfate Chemical compound [Na+].OS(=O)(=O)OC1=CC=CC=C1C([O-])=O PCTXBFQNMDKOSP-UHFFFAOYSA-M 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 231100000925 very toxic Toxicity 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Landscapes
- Electroplating And Plating Baths Therefor (AREA)
Description
Vynález se týká elektrolytu pro katodické vylučování niklu s nízkou úrovní vnitřního pnutí z vodných roztoků.The invention relates to an electrolyte for cathodic deposition of nickel with a low level of internal stress from aqueous solutions.
Známé je vylučování niklových povlaků s nízkým vnitřním pnutím ze sulfamátových a fluoroboritanových elektrolytů. Sulfamátové elektrolyty umožňují vylučovat povlaky o velké tloušťce a používají se hlavně v galvanoplastice. Podobné vlastnosti mají i fluoroboritanové elektrolyty. Nevýhodou sulfamátových elektrolytů je jejich sklon k hydrolýze vlivem vyšší teploty a nízkého pJB. Při hydrolýze vznikají síranové a amonné ionty, které podstatně zvyšují vnitřní pnutí niklových povlaků. Pluoroboritanové elektrolyty jsou značně toxické, obtížně se připravují a při jejich likvidaci je nutné použít speciální technologie.Elimination of low internal stress nickel coatings from sulfamate and fluoroborate electrolytes is known. Sulphamate electrolytes make it possible to deposit large coatings and are mainly used in electroforming. Fluoroborate electrolytes have similar properties. A disadvantage of sulfamate electrolytes is their tendency to hydrolyze due to higher temperature and low pJB. Hydrolysis produces sulphate and ammonium ions, which substantially increase the internal stress of the nickel coatings. Pluoroborate electrolytes are very toxic, difficult to prepare and special technologies must be used for their disposal.
Známé je též použití elektrolytů, obsahujících nikl ve formě sulfosalicylanového komplexu. Nevýhodou těchto elektrolytů je nízká rozpustnost sulfosalicylanu nikelnatého. V důsledku nízké rozpustnosti nikelnatého komplexu dochází ke krystalizaci na topných tělesech ponořených do elektrolytu, což způsobuje tepelnou destrukci a znehodnocení elektrolytu.The use of nickel-containing electrolytes in the form of a sulfosalicylan complex is also known. A disadvantage of these electrolytes is the low solubility of nickel sulfosalicylate. Due to the low solubility of the nickel complex, crystallization occurs on heaters immersed in the electrolyte, causing thermal destruction and degradation of the electrolyte.
Elektrolyt podle vynálezu odstraňuje uvedené nevýhody v podstatě tím, že obsahuje rozpustné soli niklu na bázi síranu v koncentraci 100 až 300 g.l vody a sulfosa11hořečnatý nebo lithný, v koncentraci 10 až 200 g,«r*vody.The electrolyte according to the invention removes these disadvantages essentially by containing soluble salts of nickel based on sulphate in a concentration of 100 to 300 g.l of water and of sulphosulphite or lithium, in a concentration of 10 to 200 g.
Vysoká rozpustnost těchto komplexů, která je pětinásobně vyšší než u sulfosalicylanu nikelnatého nebo sodného, umožňuje vylučovat velmi kvalitní povlaky s nízkým vnitřním pnutím. Přítomnost hořečnatého nebo lithného komplexu příznivě ovlivňuje vzhled vyloučených povlaků a umožňuje rozšířit pracovní oblast elektrolytu na rozmezí pH 2,0 až 5»5. Další předností elektrolytu je, že umožňuje vylučovat kvalitní povlaky s nízkým vnitřním pnutím a o velkých tloušťkách i při laboratorní teplotě /20 až 25°0/, což je vý2The high solubility of these complexes, which is five times higher than that of nickel or sodium sulfosalicylate, makes it possible to exclude high-quality coatings with low internal stress. The presence of the magnesium or lithium complex positively affects the appearance of the deposited coatings and allows the electrolyte to be expanded to a pH range of 2.0 to 5 → 5. Another advantage of the electrolyte is that it allows to deposit high-quality coatings with low internal stress and large thicknesses even at room temperature (20 to 25 ° 0), which is
225 432 hodné zejména při pokovováni modelu zhotoveného z vosku nebo lehko^ tavitelné slitiny.225 432 is particularly useful in the metallization of a model made of wax or a fusible alloy.
Pro zlepšení rozpustnosti niklových anod je vhodné použít halogenidů /chloridů, bromidů, jodidů/ ve formě sodných, draselných, hořečnatých nebo lithných solí. Přídavek slabých kyselin umožňuje udržet pH během elektrolýzy na požadovaném rozsahu. Jako slabé kyseliny je možno použít kyseliny borité, vinné, citrónové. Pro odstranění vodíkového pittingu je možno použít smáčedel, běžně pou žívaných v niklovacích lázních.To improve the solubility of the nickel anodes, it is convenient to use halides (chlorides, bromides, iodides) in the form of sodium, potassium, magnesium or lithium salts. The addition of weak acids allows the pH to be kept within the desired range during electrolysis. As weak acids, boric, tartaric and citric acids can be used. Wetting agents conventionally used in nickel plating baths may be used to remove hydrogen pitting.
Vynález je objasněn na třech příkladech provedení, jimiž však není předmět vynálezu vymezen ani vyčerpán.The invention is illustrated by three exemplary embodiments, which are not intended to be limiting or exhaustive.
Příklad 1Example 1
000 ml vody000 ml of water
200 g síran nikelnatý g bromid draselný g sulfosalicylan horečnatý g kyselina boritá pH 3,5 až 4,5 teplota 50°C — p katodová proudová hustota 5A*dm200 g nickel sulphate g potassium bromide g magnesium sulphosalicylate g boric acid pH 3,5 to 4,5 temperature 50 ° C - p cathode current density 5A * dm
Příklad 2Example 2
000 ml vody000 ml of water
300 g síran nikelnatý g chlorid sodný g sulfosalicylan lithný pH 2,0 až 3,0 teplota 50°C katodová proudová hustota 5A.dm300 g nickel sulphate g sodium chloride g lithium sulfosalicylate pH 2,0 to 3,0 temperature 50 ° C cathode current density 5A.dm
Příklad 3Example 3
000 ml vody000 ml of water
200 g síran nikelnatý200 g nickel sulphate
100 g sulfosalicylan hořečnatý g bromid draselný pH 2,0 až 3,5 teplota 20 až 25°C ·* 2 katodová proudová hustota 2A.dm100 g magnesium sulfosalicylate g potassium bromide pH 2.0 to 3.5 temperature 20 to 25 ° C · * 2 cathode current density 2A.dm
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS213882A CS225432B1 (en) | 1982-03-26 | 1982-03-26 | Electrolyte for cathodic precipitation of the nickel from water solutions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS213882A CS225432B1 (en) | 1982-03-26 | 1982-03-26 | Electrolyte for cathodic precipitation of the nickel from water solutions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS225432B1 true CS225432B1 (en) | 1984-02-13 |
Family
ID=5357641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS213882A CS225432B1 (en) | 1982-03-26 | 1982-03-26 | Electrolyte for cathodic precipitation of the nickel from water solutions |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS225432B1 (en) |
-
1982
- 1982-03-26 CS CS213882A patent/CS225432B1/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3480523A (en) | Deposition of platinum-group metals | |
| JPWO2010061766A1 (en) | Method for producing active cathode for electrolysis | |
| US4157945A (en) | Trivalent chromium plating baths | |
| US4053374A (en) | Chromium electroplating baths | |
| EP0035667B1 (en) | Trivalent chromium electroplating solution and bath | |
| US2990343A (en) | Chromium alloy plating | |
| GB1122795A (en) | Improvements in corrosion-resisting decorative chromium electrolytic deposits | |
| CA1208159A (en) | Electrodeposition of chromium and its alloys | |
| US3206382A (en) | Electrodeposition of platinum or palladium | |
| CA1149324A (en) | Silver electrodeposition composition and process | |
| JP2671013B2 (en) | Method for supplying nickel ions in alkaline nickel or nickel alloy plating | |
| CS225432B1 (en) | Electrolyte for cathodic precipitation of the nickel from water solutions | |
| JP7569788B2 (en) | Electrolyte and method for producing chromium layer | |
| RU2219293C1 (en) | Copper plating electrolyte | |
| US4411744A (en) | Bath and process for high speed nickel electroplating | |
| JPH0445598B2 (en) | ||
| GB2101633A (en) | Bath for the electrodeposition of ruthenium | |
| US2418970A (en) | Process of electrolytically depositing iron and iron alloys | |
| US3373092A (en) | Electrodeposition of platinum group metals on titanium | |
| JP2982658B2 (en) | Method of lowering metal concentration in electroplating solution | |
| JP7621838B2 (en) | Electronic nickel plating solution and electronic nickel plating method | |
| US2802779A (en) | Electrodeposition of nickel and nickel alloys | |
| GB2033430A (en) | Electrolyte for Cathodic Deposition of Alloys of Nickel with Tungsten | |
| US3256160A (en) | Method of electroplating bismuth on steel and electrolyte therefor | |
| US3622474A (en) | Electrodeposition of osmium |