EP2649223A2 - Elektrolyt für die galvanische abscheidung von gold-legierungen und verfahren zu dessen herstellung - Google Patents
Elektrolyt für die galvanische abscheidung von gold-legierungen und verfahren zu dessen herstellungInfo
- Publication number
- EP2649223A2 EP2649223A2 EP11799631.4A EP11799631A EP2649223A2 EP 2649223 A2 EP2649223 A2 EP 2649223A2 EP 11799631 A EP11799631 A EP 11799631A EP 2649223 A2 EP2649223 A2 EP 2649223A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- gold
- electrolyte
- group
- electrolyte according
- sulfite
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
- 239000003792 electrolyte Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 10
- 229910001020 Au alloy Inorganic materials 0.000 title claims abstract description 9
- 239000003353 gold alloy Substances 0.000 title claims abstract description 7
- 238000004070 electrodeposition Methods 0.000 title abstract description 10
- 238000004519 manufacturing process Methods 0.000 title description 3
- 239000010931 gold Substances 0.000 claims abstract description 33
- 229910052737 gold Inorganic materials 0.000 claims abstract description 33
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- -1 anionic thiolate Chemical class 0.000 claims abstract description 10
- 150000002739 metals Chemical class 0.000 claims abstract description 10
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012670 alkaline solution Substances 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 10
- 238000005275 alloying Methods 0.000 claims description 8
- 239000008139 complexing agent Substances 0.000 claims description 8
- 229910052738 indium Inorganic materials 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- NBUVVXNTRSKQSQ-UHFFFAOYSA-N 2-sulfanylpropane-1,3-diol Chemical compound OCC(S)CO NBUVVXNTRSKQSQ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- PJUIMOJAAPLTRJ-UHFFFAOYSA-N monothioglycerol Chemical compound OCC(O)CS PJUIMOJAAPLTRJ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052763 palladium Inorganic materials 0.000 claims description 6
- 229910052707 ruthenium Inorganic materials 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- UFULAYFCSOUIOV-UHFFFAOYSA-N cysteamine Chemical compound NCCS UFULAYFCSOUIOV-UHFFFAOYSA-N 0.000 claims description 5
- MDECNDDIBYOQGF-UHFFFAOYSA-L gold(1+);sulfite Chemical compound [Au+].[Au+].[O-]S([O-])=O MDECNDDIBYOQGF-UHFFFAOYSA-L 0.000 claims description 5
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 5
- AHPNCBGROYEARC-UHFFFAOYSA-N 2-sulfanylbutane-1,1,1-triol Chemical compound CCC(S)C(O)(O)O AHPNCBGROYEARC-UHFFFAOYSA-N 0.000 claims description 4
- SHBBDYUKUWXBOP-UHFFFAOYSA-N 2-sulfanylpentane-1,1,1,2-tetrol Chemical compound CCCC(O)(S)C(O)(O)O SHBBDYUKUWXBOP-UHFFFAOYSA-N 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- 150000001450 anions Chemical class 0.000 claims description 4
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 claims description 4
- 229960003151 mercaptamine Drugs 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 229910052718 tin Inorganic materials 0.000 claims description 4
- 239000000080 wetting agent Substances 0.000 claims description 4
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 239000002280 amphoteric surfactant Substances 0.000 claims description 2
- 125000000129 anionic group Chemical group 0.000 claims description 2
- 229910052787 antimony Inorganic materials 0.000 claims description 2
- 238000005282 brightening Methods 0.000 claims description 2
- 125000002091 cationic group Chemical group 0.000 claims description 2
- 150000001860 citric acid derivatives Chemical class 0.000 claims description 2
- 229940071106 ethylenediaminetetraacetate Drugs 0.000 claims description 2
- 229910052733 gallium Inorganic materials 0.000 claims description 2
- 229910052732 germanium Inorganic materials 0.000 claims description 2
- ZBKIUFWVEIBQRT-UHFFFAOYSA-N gold(1+) Chemical compound [Au+] ZBKIUFWVEIBQRT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- 239000003446 ligand Substances 0.000 claims description 2
- 229910021645 metal ion Inorganic materials 0.000 claims description 2
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 claims description 2
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 claims description 2
- 235000021317 phosphate Nutrition 0.000 claims description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 2
- DVECLMOWYVDJRM-UHFFFAOYSA-N pyridine-3-sulfonic acid Chemical compound OS(=O)(=O)C1=CC=CN=C1 DVECLMOWYVDJRM-UHFFFAOYSA-N 0.000 claims description 2
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 claims description 2
- 229910052711 selenium Inorganic materials 0.000 claims description 2
- 239000011669 selenium Substances 0.000 claims description 2
- KFLRWGSAMLBHBV-UHFFFAOYSA-M sodium;pyridine-3-carboxylate Chemical compound [Na+].[O-]C(=O)C1=CC=CN=C1 KFLRWGSAMLBHBV-UHFFFAOYSA-M 0.000 claims description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 claims description 2
- 229940095064 tartrate Drugs 0.000 claims description 2
- 150000003498 tellurium compounds Chemical class 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 239000002738 chelating agent Substances 0.000 claims 1
- 238000010668 complexation reaction Methods 0.000 claims 1
- 238000009713 electroplating Methods 0.000 claims 1
- CBMIPXHVOVTTTL-UHFFFAOYSA-N gold(3+) Chemical class [Au+3] CBMIPXHVOVTTTL-UHFFFAOYSA-N 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 claims 1
- 239000003115 supporting electrolyte Substances 0.000 claims 1
- 150000003573 thiols Chemical class 0.000 abstract description 6
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 239000007864 aqueous solution Substances 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 231100000331 toxic Toxicity 0.000 description 5
- 230000002588 toxic effect Effects 0.000 description 5
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 4
- 150000002825 nitriles Chemical class 0.000 description 4
- 230000000536 complexating effect Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- SRCZENKQCOSNAI-UHFFFAOYSA-H gold(3+);trisulfite Chemical class [Au+3].[Au+3].[O-]S([O-])=O.[O-]S([O-])=O.[O-]S([O-])=O SRCZENKQCOSNAI-UHFFFAOYSA-H 0.000 description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 description 2
- XOAAWQZATWQOTB-UHFFFAOYSA-N taurine Chemical compound NCCS(O)(=O)=O XOAAWQZATWQOTB-UHFFFAOYSA-N 0.000 description 2
- 150000007944 thiolates Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- SNTWKPAKVQFCCF-UHFFFAOYSA-N 2,3-dihydro-1h-triazole Chemical compound N1NC=CN1 SNTWKPAKVQFCCF-UHFFFAOYSA-N 0.000 description 1
- STUQITWXBMZUGY-UHFFFAOYSA-N 6-hydroxy-2-sulfanylidene-1h-pyrimidin-4-one Chemical compound OC1=CC(O)=NC(S)=N1 STUQITWXBMZUGY-UHFFFAOYSA-N 0.000 description 1
- HVAPDCIQJNRQMH-UHFFFAOYSA-N C(C1=CN=CC=C1)(=O)OCC1=CC=CC=C1.[Na] Chemical compound C(C1=CN=CC=C1)(=O)OCC1=CC=CC=C1.[Na] HVAPDCIQJNRQMH-UHFFFAOYSA-N 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- WOFVPNPAVMKHCX-UHFFFAOYSA-N N#C[Au](C#N)C#N Chemical class N#C[Au](C#N)C#N WOFVPNPAVMKHCX-UHFFFAOYSA-N 0.000 description 1
- KQJQICVXLJTWQD-UHFFFAOYSA-N N-Methylthiourea Chemical compound CNC(N)=S KQJQICVXLJTWQD-UHFFFAOYSA-N 0.000 description 1
- XGEGHDBEHXKFPX-UHFFFAOYSA-N N-methylthiourea Natural products CNC(N)=O XGEGHDBEHXKFPX-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- NHFMFALCHGVCPP-UHFFFAOYSA-M azanium;gold(1+);sulfite Chemical compound [NH4+].[Au+].[O-]S([O-])=O NHFMFALCHGVCPP-UHFFFAOYSA-M 0.000 description 1
- DLDJFQGPPSQZKI-UHFFFAOYSA-N but-2-yne-1,4-diol Chemical compound OCC#CCO DLDJFQGPPSQZKI-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- IOUCSUBTZWXKTA-UHFFFAOYSA-N dipotassium;dioxido(oxo)tin Chemical compound [K+].[K+].[O-][Sn]([O-])=O IOUCSUBTZWXKTA-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 150000002343 gold Chemical class 0.000 description 1
- DOUHZFSGSXMPIE-UHFFFAOYSA-N hydroxidooxidosulfur(.) Chemical compound [O]SO DOUHZFSGSXMPIE-UHFFFAOYSA-N 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910000337 indium(III) sulfate Inorganic materials 0.000 description 1
- XGCKLPDYTQRDTR-UHFFFAOYSA-H indium(iii) sulfate Chemical compound [In+3].[In+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O XGCKLPDYTQRDTR-UHFFFAOYSA-H 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229960003080 taurine Drugs 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 1
- 229940035024 thioglycerol Drugs 0.000 description 1
- ZEMGGZBWXRYJHK-UHFFFAOYSA-N thiouracil Chemical compound O=C1C=CNC(=S)N1 ZEMGGZBWXRYJHK-UHFFFAOYSA-N 0.000 description 1
- 229950000329 thiouracil Drugs 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/62—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of gold
Definitions
- the present invention relates to cyanide-free electrolytes for the electrodeposition of binary and polynary alloys of gold which contain an alkaline solution of anionic thiolate complexes of gold and gold-alloyed metals.
- These electrolytes can be prepared in a simple environmentally friendly and economical manner from commercially available aqueous solutions of sulfite complexes of gold and a multiplicity of salts of the corresponding alloying metals by addition of the thiols and setting of an alkaline pH of the galvanic bath.
- Electrolytes show long-term stability and can be used for the electrodeposition of gold alloys.
- the present invention relates to a process for the preparation of said electrolyte.
- the electrodeposition of gold has been carried out for many years using electrolytes based on gold-cyanide complexes.
- In the alkaline range there are portions of toxic alkali cyanides and also the other metal cyanides are extremely toxic.
- the cyanide liberated during the electrolysis escapes in the form of toxic hydrogen cyanide or dicyan. This toxicity and associated problematic handling is one of the major disadvantages of cyanide-containing electrolytes.
- Another problem relates to the disposal of the cyanides contained in the depleted electrolyte.
- EP 0611840 AI galvanic baths are be ⁇ known in which there is gold as thiosulfate complex. To stabilize these complexes, a sulfinate is added here, since these baths also have problems with regard to the stability of the complexes.
- Another disadvantage with the last mentioned galvanic baths concerns the fact that the reversible current densities are limited here, since decomposition takes place at high current densities. Furthermore, odors can occur in such galvanic baths.
- US Pat. No. 6,165,342 presents electrolysis baths for the separation of gold and gold alloys in which gold complexes with mercaptosulfonic acids and disulfide disulfonic acids are used. These compounds have the disadvantage that, because of the high molecular weights of the sulfonic acids and the excess acid functions to be neutralized, they have a high proportion of foreign substances and thus only small amounts of gold. This circumstance also leads to corresponding processing and disposal problems.
- Electrolyte is significantly improved.
- This task is performed by the cyanide-free electrolyte for the electrodeposition of gold or gold.
- a cyanide-free electrolyte is provided for the electrodeposition of binary or polynary gold alloys containing at least 50% by weight of gold, which consists of a neutral or alkaline solution which contains the following components:
- At least one alloying agent for gold selected from the group consisting of Cu, Ag, In, Fe, Co, Ni, Zn, Ru and Pd,
- a complexing agent selected from the group of the anions of 1- and 2-thioglycerol, monothioglycol, mercapto-n-butanetriol, mercapto-i-butanetriol, mercaptopentantetrol, cysteamine or combinations thereof and
- the gold content of the electrolyte is obtained from a safe, environmentally sound, easy-to-use and economical source and can be adjusted to the desired concentrations.
- a halogen-free composition of the electrolyzer ⁇ th is possible.
- the electrolyte has a high long-term stability compared to cyanide-based electrolyzer ⁇ th. •
- the components of the electrolyte show a high solubility in a wide pH range of 7 to 14 and there is no anodic precipitation.
- the electrolyte has a content of gold in the range of 0.01 to 5 wt .-%, in particular from 0.05 to 1.5 wt .-% to.
- the electrolyte contains at least one alloying agent in an amount of 0.1 to 35 wt .-%, in particular 0.1 to 10 wt .-%.
- the electrolyte contains further metals selected from the group consisting of Ga, Ge, Sn, Sb, Bi, Rh, Ir, Zr. These metals are preferably contained in an amount of 0.1 to 5 wt .-%.
- the electrolyte contains more complexing agents. These include in particular ethylenediaminetetra acetate, nitrilotriacetate, ammonia, tartrate or 8-oxyquinoline.
- the electrolyte may contain additives selected from the following group:
- Brightening agents in particular in a concentration of 0.01 to 5 wt .-%
- Wetting agents in particular in a concentration of 0.05 to 0.5% by weight
- Conducting salts in particular in a concentration of 1 to 20 wt .-%
- the brightener is preferably an inorganic brightener, in particular a selenium and / or tellurium compound, or an organic brightener, in particular pyridine-3-sulfonic acid, benzaldehyde, 2-butyne-1, 4-diol and / or sodium nicotinate.
- the wetting agent is preferably at least one surfactant selected from the group of cationic, anionic, nonionic, amphoteric surfactants or mixtures thereof.
- the conductive salt is preferably an inorganic
- Conducting salt in particular from the group of sulfates and phosphates, or an organic conductive salt, in particular from the group of citrates.
- the pH of the electrolyte is preferably in the range from 7 to 14, in particular from 9 to 12.
- Da ⁇ in the electrolyte is thermally stable in the range of 20 to 85 ° C.
- the number of ligands of the complexes contained in the electrolyte at least equal to the sum of the maximum coordination numbers of gold and the metals present.
- a particular advantage of the electrolyte according to the invention is that it is halogen-free.
- a particularly preferred electrolyte contains the following components: Gold (I) ions,
- At least one alloying agent for gold selected from the group consisting of Cu, Ag, In, Fe, Co, Ni, Zn, Ru and Pd,
- the invention likewise provides a process for the preparation of a cyanide-free electrolyte as described above, in which an aqueous gold (I) sulfite solution is a metal salt selected from the group consisting of Cu, Ag, In, Fe, Co, Ni, Zn, Ru and Pd or mixtures thereof and a stoichiometric amount for complexing the contained gold and metal ions exceeding amount of a complexing agent selected from the group of the anions of 1- and 2-thioglycerol, monothioglycol, mercapto-n-butanetriol , Mercapto-i-butanetriol, mercapto-pentantetrol, cysteamine, or combinations thereof, and the pH of the solution is adjusted in the range of 7 to 14.
- an aqueous gold (I) sulfite solution is a metal salt selected from the group consisting of Cu, Ag, In, Fe, Co, Ni, Zn, Ru and Pd or mixtures thereof and a stoichiometric amount
- an electrolyte is prepared containing 100 g / L sodium formate, 100 g / L sodium sulfite, 4 g / L gold, 30 g / L taurine and 0.1 ml / L Sodium benzyl nicotinate be added. Furthermore, the calculated amounts of indium (III) sulfate and potassium stannate IV) and the corresponding equivalents of thioglycerol (> 4 equivalents per metal atom) are added. This sets the concentrations of indium and tin to 0.6 g / L and 0.3 g / L.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010053676A DE102010053676A1 (de) | 2010-12-07 | 2010-12-07 | Elektrolyt für die galvanische Abscheidung von Gold-Legierungen und Verfahren zu dessen Herstellung |
| PCT/EP2011/006155 WO2012076174A2 (de) | 2010-12-07 | 2011-12-07 | Elektrolyt für die galvanische abscheidung von gold-legierungen und verfahren zu dessen herstellung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2649223A2 true EP2649223A2 (de) | 2013-10-16 |
Family
ID=45401026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11799631.4A Withdrawn EP2649223A2 (de) | 2010-12-07 | 2011-12-07 | Elektrolyt für die galvanische abscheidung von gold-legierungen und verfahren zu dessen herstellung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2649223A2 (de) |
| DE (1) | DE102010053676A1 (de) |
| WO (1) | WO2012076174A2 (de) |
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|---|---|---|---|---|
| CN110699713A (zh) * | 2019-11-21 | 2020-01-17 | 长春黄金研究院有限公司 | 一种无氰金合金电铸液及其使用方法 |
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| CN107430211B (zh) | 2015-03-25 | 2020-04-28 | 依视路国际公司 | 具有低Rv和低Ruv的减反射溅射叠层 |
| EP3371645B1 (de) | 2015-11-06 | 2025-10-29 | Essilor International | Optischer artikel zum schutz vor blauem licht |
| JP2018536894A (ja) | 2015-11-06 | 2018-12-13 | エシロール アンテルナショナルEssilor International | 青色光及びuv光から保護する光学物品 |
| CA3003972A1 (en) | 2015-11-06 | 2017-05-11 | Essilor International | Optical article cutting blue light |
| EP3327488B1 (de) | 2016-11-23 | 2021-01-06 | Essilor International | Optischer artikel mit einem gegen photodegradation resistenten farbstoff |
| EP3327091B1 (de) | 2016-11-23 | 2023-01-18 | Essilor International | Funktionelle epoxyzusammensetzung zum schützen von farbstoffen vor photooxidativem abbau und daraus hergestellte gehärtete beschichtungen |
| EP3457197A1 (de) | 2017-09-19 | 2019-03-20 | Essilor International | Optische linse zur korrektur der farbwahrnehmung |
| DE102019202899B3 (de) * | 2019-03-04 | 2019-11-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Wässrige Formulierung zum Herstellen einer Schicht aus Gold und Silber |
| CN114635043B (zh) * | 2020-12-16 | 2023-03-21 | 东北大学 | 一种以酒石酸为稳定剂的铜-硫代硫酸盐浸金工艺 |
| CN112536046B (zh) * | 2020-12-23 | 2023-10-03 | 郑州轻工业大学 | 具有高效还原活性的片状硫化铟锌光催化剂的制备方法 |
| CN113809408A (zh) * | 2021-08-20 | 2021-12-17 | 青岛科技大学 | 一种水系锌离子电池添加剂、电池电解液及其应用 |
| IT202200022545A1 (it) * | 2022-11-03 | 2024-05-03 | Valmet Plating S R L | Additivo per bagni galvanici a base d’oro |
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|---|---|---|---|---|
| US4048023A (en) * | 1976-06-09 | 1977-09-13 | Oxy Metal Industries Corporation | Electrodeposition of gold-palladium alloys |
| DE2744962A1 (de) * | 1977-10-06 | 1979-04-19 | Oxy Metal Industries Corp | Galvanisches bad fuer die abscheidung von goldlegierungen |
| US6565732B1 (en) * | 1999-10-07 | 2003-05-20 | Tanaka Kikinzoku Kogyo K.K. | Gold plating solution and plating process |
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|---|---|---|---|---|
| US3238112A (en) * | 1962-07-03 | 1966-03-01 | Du Pont | Electroplating of metals using mercapto-metal complex salts |
| GB1594011A (en) * | 1977-10-06 | 1981-07-30 | Oxy Metal Industries Corp | Gold alloy plating bath |
| US4366035A (en) * | 1979-04-24 | 1982-12-28 | Engelhard Corporation | Electrodeposition of gold alloys |
| US4435253A (en) | 1983-01-28 | 1984-03-06 | Omi International Corporation | Gold sulphite electroplating solutions and methods |
| US5302278A (en) | 1993-02-19 | 1994-04-12 | Learonal, Inc. | Cyanide-free plating solutions for monovalent metals |
| DE19629658C2 (de) | 1996-07-23 | 1999-01-14 | Degussa | Cyanidfreies galvanisches Bad zur Abscheidung von Gold und Goldlegierungen |
| JP3985220B2 (ja) * | 2001-12-06 | 2007-10-03 | 石原薬品株式会社 | 非シアン系の金−スズ合金メッキ浴 |
| JP2004176171A (ja) | 2002-09-30 | 2004-06-24 | Shinko Electric Ind Co Ltd | 非シアン電解金めっき液 |
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2010
- 2010-12-07 DE DE102010053676A patent/DE102010053676A1/de not_active Ceased
-
2011
- 2011-12-07 EP EP11799631.4A patent/EP2649223A2/de not_active Withdrawn
- 2011-12-07 WO PCT/EP2011/006155 patent/WO2012076174A2/de not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048023A (en) * | 1976-06-09 | 1977-09-13 | Oxy Metal Industries Corporation | Electrodeposition of gold-palladium alloys |
| DE2744962A1 (de) * | 1977-10-06 | 1979-04-19 | Oxy Metal Industries Corp | Galvanisches bad fuer die abscheidung von goldlegierungen |
| US6565732B1 (en) * | 1999-10-07 | 2003-05-20 | Tanaka Kikinzoku Kogyo K.K. | Gold plating solution and plating process |
Non-Patent Citations (1)
| Title |
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| See also references of WO2012076174A2 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110699713A (zh) * | 2019-11-21 | 2020-01-17 | 长春黄金研究院有限公司 | 一种无氰金合金电铸液及其使用方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010053676A1 (de) | 2012-06-14 |
| WO2012076174A3 (de) | 2013-02-14 |
| WO2012076174A8 (de) | 2012-08-23 |
| WO2012076174A2 (de) | 2012-06-14 |
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