US543824A - Henry j - Google Patents
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- US543824A US543824A US543824DA US543824A US 543824 A US543824 A US 543824A US 543824D A US543824D A US 543824DA US 543824 A US543824 A US 543824A
- Authority
- US
- United States
- Prior art keywords
- platinum
- bath
- nickel
- alloy
- chloride
- 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.)
- Expired - Lifetime
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 88
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 44
- 229910052697 platinum Inorganic materials 0.000 description 44
- 229910052751 metal Inorganic materials 0.000 description 42
- 239000002184 metal Substances 0.000 description 42
- 229910045601 alloy Inorganic materials 0.000 description 32
- 239000000956 alloy Substances 0.000 description 32
- 229910001260 Pt alloy Inorganic materials 0.000 description 30
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 30
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 30
- 238000000034 method Methods 0.000 description 28
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 26
- 150000002739 metals Chemical class 0.000 description 24
- 238000009713 electroplating Methods 0.000 description 22
- 229910052759 nickel Inorganic materials 0.000 description 22
- 239000000463 material Substances 0.000 description 20
- 229910000990 Ni alloy Inorganic materials 0.000 description 18
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 16
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 14
- 239000011734 sodium Substances 0.000 description 14
- 229910052708 sodium Inorganic materials 0.000 description 14
- 239000004615 ingredient Substances 0.000 description 12
- 238000007747 plating Methods 0.000 description 12
- 150000003839 salts Chemical class 0.000 description 12
- 239000011780 sodium chloride Substances 0.000 description 12
- QUSNBJAOOMFDIB-UHFFFAOYSA-N ethyl amine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 235000011121 sodium hydroxide Nutrition 0.000 description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- KPZGRMZPZLOPBS-UHFFFAOYSA-N 1,3-dichloro-2,2-bis(chloromethyl)propane Chemical compound ClCC(CCl)(CCl)CCl KPZGRMZPZLOPBS-UHFFFAOYSA-N 0.000 description 6
- CLSUSRZJUQMOHH-UHFFFAOYSA-L Platinum(II) chloride Chemical compound Cl[Pt]Cl CLSUSRZJUQMOHH-UHFFFAOYSA-L 0.000 description 6
- 150000007530 organic bases Chemical class 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000004070 electrodeposition Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 210000002370 ICC Anatomy 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- -1 chlorine iron Chemical compound 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- 150000002815 nickel Chemical class 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- 235000011118 potassium hydroxide Nutrition 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000005494 tarnishing Methods 0.000 description 2
- FBEIPJNQGITEBL-UHFFFAOYSA-J tetrachloroplatinum Chemical compound Cl[Pt](Cl)(Cl)Cl FBEIPJNQGITEBL-UHFFFAOYSA-J 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/018—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of a noble metal or a noble metal alloy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/934—Electrical process
- Y10S428/935—Electroplating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12875—Platinum group metal-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12944—Ni-base component
Definitions
- my invention comprises a process for electroplating articles of metal or other suitable material with an alloy of platinum and one or more'othe'r suitable metals of the class above defined, which'process consists in forming a suitable bath or solution containing a chloride of platinum and the sulphate of the other metal or metals desired in the alloy to be electrodeposited, immersing in the bath as a cathode the article to be plated and an anode composed of an alloy of the metals to be electrodeposited, and then passing an electric current through the bath, thereby electrolyzing the same.
- the object of my invention so far as it relates to the employment-of alloys of platinum and nickel, is to produce upon the articles to be plated a brilliant coating, almost resembling in color that of silver, but less liable to tarnish or corrode, and therefore better adapted for commercial uses than any known alloy.
- My invention considered only with refer-.
- ence to the employment of alloys of platinum and nickel comprises, in general terms, a process for electroplating articles of metal or other suitable material with such alloys, which process consists informing a suitable bath or solution containing a chloride of platinum and the sulphate of nickel, immersing in the bath asa cathode the article to be plated, and an anode composed of an alloy of platinum and nickel, and then passing an electric current through the bath, therebyelectrolyzing the same.
- This specific form of my invention further comprises the improved electroplating solution herein described, composed of salts of platinum and nickel with the other herein specified ingredients, and the articles plated with an alloy of platinum and nickel.
- the salt of nickel which I preferably employ is its sulphate, but the chloride and the nitrate may also be-employed in my process.
- I preferably employ a chloride of platinum, usually the tetrachloride.
- I preferably form an electrolytic bath of the following indgredients, in suitable proportions, to wit: The sulphate of nickel and ammonium, platinum tetrachloride, chloride of sodium, caustic soda, and ethylamine or a material having equivalent properties.
- inplaoe ot' the caustic soda any other suitable alkaline material may be used such as caustic potash, sodium potash, &c.
- ethylarnine any other suitable organic base containing nitrogen may be em-- ployed-such, for example, as methylamine among the amines, or pyridine among the vegeto-alkaloids.
- the ethylamine or other organic base is used primarily to neutralize the excess of hydrochloric acid in the commercial salts of platinum.
- the alkaline material is also used to neutralize the acids in the bath and serves the further purpose of increasing the conductive power of the bath.
- the proportions of the above ingredients will vary according to the proportion of platinum desired in the plating.
- a very small proportion (say one per cent.) of platinum in the alloy will protect the articles plated with the alloy from the oxidation of the atmosphere.
- a larger proportion of platinum is necessary to prevent tarnishing and corrosion from other causes.
- the proportion of platinum should not exceed one part platinum to three parts nickel. ⁇ Vithin the limits specified as to the proportion of platinum to be employed my process operates successfully. Taking the case where it is desired that the plating shall contain one per cent.
- platinum I preferably mingle the said ingredients in the bath in about the following proportions, to wit: sulphate of nickel and ammonium, twelve ounces; tetrachloride of platinum, one-fourth of an ounce; chloride of sodium, one-half ofan ounce; caustic soda, one-sixth of an ounce; ethylamine, one and one-fourth ounces.
- Theseingredients I preferably first dissolve separately, as follows: The salts of nickel and ammonium in seven pints of water, the chloride of platinum in half a pint of water, and the caustic soda also in half a pint of water.
- the solution of canstic soda is then added to the platinum chloride solution, and to the resulting mixture I add the ethylamine or equivalent material.
- the mixture thus obtained is then added to the nickel solution, and last the chloride of sodium is put in.
- I'he resulting bath is then introduced into any suitable electroplating apparatus.
- I preferably employ an anode composed of an alloy of platinum and nickel mingled in approximately the same proportions as are desired in the alloy to be electrodeposited. If desired, however, an anode of any other suitable material, as of platinum or carbon, may be employed. In this latter case the bath is replenished from time to time by the addition of suitable quantities of the metal salts.
- the article to be plated serves as the cathode.
- I preferably employ a strong smooth current of electricity of suitable voltage and volume.
- the voltage of the current is preferably between two and five volts.
- the plating is homogeneous-that is to say, the plating consists throughout of a perfect intermixture of the metals constituting the alloy, instead of a succession of layers having different compositions.
- the herein described process which consists in forming a suitable bath containing a chloride of platinum and the sulphate of the other metal or metals desired in the alloy to be electro-deposited, (which may be any suitable known metal or metals having a specific gravity between 2.6 and 9 at 0 centigrade under the ordinary atmospheric pressure,) immersing in the bath as a cathode the article to be plated and an anode composed of an alloy of themetals to be electro-deposited, and finally passing an electric current through the bath, substantially as described.
- the herein described process which consists in forming a suitable electrolytic bath or solution, containing a chloride of platinumand the solphate of the other metal or metals desired in the alloy to be electro-deposited, (which may be any known metal or metals having a specific gravity between 2.6 and 9 at 0 centigrade under the ordinary atmospheric pressure,) asuitable ingredient used for conductive purposes, the chloride of sodium, a suitable alkaline material and a suitable organic base containing nitrogen, then immersing in the bath as a cathode the article to be plated and an anode composed of an alloy of the metals to be electro-deposited; and finally passing an electric current through the bath, substantially as described.
- the herein described process which consists in forming a suitable electrolytic bath or solution con taining a chloride of platinum and the sulphate of nickel, immersing in the bath as a cathode the article to be plated, and an anode composed of an alloy of platinum and nickel, and then passing an electric current through the bath, substantially as described.
- the herein described process which consists in forming a suitable electrolytic bath or solution of the tetrachloride of platinum, the sulphate of nickel and ammonium, the chloride of sodium, a suitable alkaline material and a suit- ICC) - then immersing in the bath as a cathode the article to be plated, and an anode composed of an alloy of platinum and nickel in approximately the proportions desired for the plating to be electro-deposited, and finally passing an electric'c'urrent through the bath substantially as described. 6.
- the improved electro plating solution herein described composed of salts of nickel and ainmonium,.dissolved in water, chloride of platinum and caustic soda, chloride of sodium and ethylamine, substantially as set forth.
Description
UNITED ST TES PATENT OFFICE.
HENRY J. ALTMAN, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO MAX H. FISCHER, OF SAME PLACE.
ELECTRODEPOSITION OF ALLOY.
SPECIFICATION forming part 'of Letters Patent N o. 543,8;24, dated July 30, 1895.
' Application filed April 12, 1894.. Serial No; 507,305. (No specimens.)
To all whom it may concern.-
Be itknown that I, HENRY J. ALTMAN, of the city, county, and State of New York, have invented certain new and useful Improvements in Electrodeposition of Alloys of Platinum; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in pressure, except manganese, antimony, and
chromium, which are not suitable for use in my invention herein described.
In general terms, my invention comprises a process for electroplating articles of metal or other suitable material with an alloy of platinum and one or more'othe'r suitable metals of the class above defined, which'process consists in forming a suitable bath or solution containing a chloride of platinum and the sulphate of the other metal or metals desired in the alloy to be electrodeposited, immersing in the bath as a cathode the article to be plated and an anode composed of an alloy of the metals to be electrodeposited, and then passing an electric current through the bath, thereby electrolyzing the same.
It also comprises the improved electroplating solution herein described and the articles plated with the specified alloys.
For convenience I will describe my invention with special reference to the electrodepos'ition of alloys of platinum and nickel, it being understood that my invention is also applicable to alloys composed of platinum and any one or more suitable metals of the class above defined; Y
The object of my invention, so far as it relates to the employment-of alloys of platinum and nickel, is to produce upon the articles to be plated a brilliant coating, almost resembling in color that of silver, but less liable to tarnish or corrode, and therefore better adapted for commercial uses than any known alloy.
My invention, considered only with refer-. ence to the employment of alloys of platinum and nickel, comprises, in general terms, a process for electroplating articles of metal or other suitable material with such alloys, which process consists informing a suitable bath or solution containing a chloride of platinum and the sulphate of nickel, immersing in the bath asa cathode the article to be plated, and an anode composed of an alloy of platinum and nickel, and then passing an electric current through the bath, therebyelectrolyzing the same. This specific form of my invention further comprises the improved electroplating solution herein described, composed of salts of platinum and nickel with the other herein specified ingredients, and the articles plated with an alloy of platinum and nickel.
The salt of nickel which I preferably employ is its sulphate, but the chloride and the nitrate may also be-employed in my process. I preferably employ a chloride of platinum, usually the tetrachloride.
In carrying on 'my said improved process of electroplating, I preferably form an electrolytic bath of the following indgredients, in suitable proportions, to wit: The sulphate of nickel and ammonium, platinum tetrachloride, chloride of sodium, caustic soda, and ethylamine or a material having equivalent properties. Inplaoe ot' the caustic soda any other suitable alkaline material may be used such as caustic potash, sodium potash, &c. In place of ethylarnine any other suitable organic base containing nitrogen may be em-- ployed-such, for example, as methylamine among the amines, or pyridine among the vegeto-alkaloids. The ethylamine or other organic base is used primarily to neutralize the excess of hydrochloric acid in the commercial salts of platinum. The alkaline material is also used to neutralize the acids in the bath and serves the further purpose of increasing the conductive power of the bath.
The proportions of the above ingredients will vary according to the proportion of platinum desired in the plating. A very small proportion (say one per cent.) of platinum in the alloy will protect the articles plated with the alloy from the oxidation of the atmosphere. A larger proportion of platinum is necessary to prevent tarnishing and corrosion from other causes. To produce the best results in my said improved process,.the proportion of platinum should not exceed one part platinum to three parts nickel. \Vithin the limits specified as to the proportion of platinum to be employed my process operates successfully. Taking the case where it is desired that the plating shall contain one per cent. platinum, I preferably mingle the said ingredients in the bath in about the following proportions, to wit: sulphate of nickel and ammonium, twelve ounces; tetrachloride of platinum, one-fourth of an ounce; chloride of sodium, one-half ofan ounce; caustic soda, one-sixth of an ounce; ethylamine, one and one-fourth ounces. Theseingredients I preferably first dissolve separately, as follows: The salts of nickel and ammonium in seven pints of water, the chloride of platinum in half a pint of water, and the caustic soda also in half a pint of water. The solution of canstic soda is then added to the platinum chloride solution, and to the resulting mixture I add the ethylamine or equivalent material. The mixture thus obtained is then added to the nickel solution, and last the chloride of sodium is put in. I'he resulting bath is then introduced into any suitable electroplating apparatus. I preferably employ an anode composed of an alloy of platinum and nickel mingled in approximately the same proportions as are desired in the alloy to be electrodeposited. If desired, however, an anode of any other suitable material, as of platinum or carbon, may be employed. In this latter case the bath is replenished from time to time by the addition of suitable quantities of the metal salts. The article to be plated serves as the cathode. \Vhen the current is caused to flow, the metals are deposited on the cathode as an alloy of the desired composition. \Vhen a larger percentage of platinum is desired in the bath, the proportion of the platinum chloride in the bath is suitably increased. As the proportion of the platinum chloride to the nickel salt increases in the bath the other ingredients in the bath should be increased in somewhat the same proportions. The exact proportions, however, will depend upon conditions which need not be set forth here, being familiar to those acquainted with the art. r
I do not limit myself to any special pro portions of the ingredients of the bath, as any proportions of the same which may found suitable may be employed.
I do not limit myself to any particular proportions of the metals in the alloy to be electrodeposited, as such proportions may be varied according to the purpose for which the plating is required without departing from the essential nature of my invention.
In the process herein described, the platinum of the'anode is probably dissolved by the chlorine iron.
I preferably employ a strong smooth current of electricity of suitable voltage and volume. The voltage of the current is preferably between two and five volts.
By the herein described process, a regular effective non -oxidizing deposit is obtained, and the plating is homogeneous-that is to say, the plating consists throughout of a perfect intermixture of the metals constituting the alloy, instead of a succession of layers having different compositions.
Having described my invention, what I claim, and desire to secure by Letters Patent,
1. As an improvement in the art of electroplating with alloys of platinum, the herein described process, which consists in forming a suitable bath containing a chloride of platinum and the sulphate of the other metal or metals desired in the alloy to be electro-deposited, (which may be any suitable known metal or metals having a specific gravity between 2.6 and 9 at 0 centigrade under the ordinary atmospheric pressure,) immersing in the bath as a cathode the article to be plated and an anode composed of an alloy of themetals to be electro-deposited, and finally passing an electric current through the bath, substantially as described.
2. As an improvement in the art of electro plating, with alloys of platinum, the herein described process which consists in forming a suitable electrolytic bath or solution, containing a chloride of platinumand the solphate of the other metal or metals desired in the alloy to be electro-deposited, (which may be any known metal or metals having a specific gravity between 2.6 and 9 at 0 centigrade under the ordinary atmospheric pressure,) asuitable ingredient used for conductive purposes, the chloride of sodium, a suitable alkaline material and a suitable organic base containing nitrogen, then immersing in the bath as a cathode the article to be plated and an anode composed of an alloy of the metals to be electro-deposited; and finally passing an electric current through the bath, substantially as described.
3. As an improvement in the art of electroplating with alloys of platinum, the herein described process which consists in forming a suitable electrolytic bath or solution con taining a chloride of platinum and the sulphate of nickel, immersing in the bath as a cathode the article to be plated, and an anode composed of an alloy of platinum and nickel, and then passing an electric current through the bath, substantially as described.
4,. As an improvement in the art of electroplating with alloys of platinum, the herein described process which consists in forming a suitable electrolytic bath or solution of the tetrachloride of platinum, the sulphate of nickel and ammonium, the chloride of sodium, a suitable alkaline material and a suit- ICC) - then immersing in the bath as a cathode the article to be plated, and an anode composed of an alloy of platinum and nickel in approximately the proportions desired for the plating to be electro-deposited, and finally passing an electric'c'urrent through the bath substantially as described. 6. As a new composition of matter, the improved electro plating solution herein described composed of salts of nickel and ainmonium,.dissolved in water, chloride of platinum and caustic soda, chloride of sodium and ethylamine, substantially as set forth.
7. As a new article of manufacture, an article of metal or other suitable material plated with an alloy of platinum and nickel, substantially as shown and described.
HENRY J. ALTMAN. YVitnesses:
GILBERT H. CRAWFORD, L. FIcsHER.
Publications (1)
Publication Number | Publication Date |
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US543824A true US543824A (en) | 1895-07-30 |
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Family Applications (1)
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US543824D Expired - Lifetime US543824A (en) | Henry j |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2461933A (en) * | 1947-12-24 | 1949-02-15 | Paul T Smith | Rhodium alloy coatings and method of making same |
US3265596A (en) * | 1963-02-11 | 1966-08-09 | Ibm | Cobalt-nickel alloy plating baths |
US4778574A (en) * | 1987-09-14 | 1988-10-18 | American Chemical & Refining Company, Inc. | Amine-containing bath for electroplating palladium |
-
0
- US US543824D patent/US543824A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2461933A (en) * | 1947-12-24 | 1949-02-15 | Paul T Smith | Rhodium alloy coatings and method of making same |
US3265596A (en) * | 1963-02-11 | 1966-08-09 | Ibm | Cobalt-nickel alloy plating baths |
US4778574A (en) * | 1987-09-14 | 1988-10-18 | American Chemical & Refining Company, Inc. | Amine-containing bath for electroplating palladium |
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