US999655A - Electrolyte for depositing zinc. - Google Patents
Electrolyte for depositing zinc. Download PDFInfo
- Publication number
- US999655A US999655A US58647610A US1910586476A US999655A US 999655 A US999655 A US 999655A US 58647610 A US58647610 A US 58647610A US 1910586476 A US1910586476 A US 1910586476A US 999655 A US999655 A US 999655A
- Authority
- US
- United States
- Prior art keywords
- zinc
- chlorid
- electrolyte
- aluminum
- double
- 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
Links
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title description 18
- 229910052725 zinc Inorganic materials 0.000 title description 18
- 239000011701 zinc Substances 0.000 title description 18
- 239000003792 electrolyte Substances 0.000 title description 13
- 238000000151 deposition Methods 0.000 title 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 19
- 229910052782 aluminium Inorganic materials 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 11
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 10
- 229910052783 alkali metal Inorganic materials 0.000 description 8
- 150000001340 alkali metals Chemical class 0.000 description 8
- 150000001342 alkaline earth metals Chemical class 0.000 description 6
- 239000003513 alkali Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 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 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- JHKXZYLNVJRAAJ-WDSKDSINSA-N Met-Ala Chemical compound CSCC[C@H](N)C(=O)N[C@@H](C)C(O)=O JHKXZYLNVJRAAJ-WDSKDSINSA-N 0.000 description 1
- TXNPFKONLYLCNQ-UHFFFAOYSA-K [Na].[Al+3].[Cl-].[Cl-].[Cl-] Chemical compound [Na].[Al+3].[Cl-].[Cl-].[Cl-] TXNPFKONLYLCNQ-UHFFFAOYSA-K 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical compound [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 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
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
Definitions
- This invention relates to the electrodeposition of zinc and has particular reference to an improved process of electrodepositing zinc and to a novel electrolyte for use in the practice of such process.
- a; dense coherent deposit of Zinc, free from crystals of compounds of zinc or anyofthem can be obtained by the electrolysis of a bath containing chlorid of zinc, preferably combined with an alkali or alkaline earth metal in the form of a double chlorid of zinc and alkali or alkaline earth metal, as for example sodium, together with chlorid of aluminum and an alkali or alkaline earth metal, preferably combined in the form of a double chlorid of aluminum and such alkali or alkaline earth metal, as for example sodium.
- an organic addition agent such, for example,
- the operation of the process is still further I preferably to a temperature of about C.
- a preferred embodiment of my improved electrolyte contains the following ingredients in the approximate proportions speci- Zinc chlorid (ZnCl 10 parts by weight Sodium aluminum chlorid greater portion of which is zinc.
- a particular advantage of my improved electrolyte is that a high current density is I obtainable with a very low current voltage.
- the voltage was only from .55 to .66 and a very dense, adherent deposit was obtained which was wholly free from zinc oxid or other zinc salt.
- alkaline earth metals therefor and to this extent the alkaline earth metals are contemplated as equivalents of the alkali metals in the practice of my invention.
- An electrolyte comprising chlorid of zinc, and a double chlorid of aluminum and another metal.
- An electrolyte comprising chlorid of zinc, and a double chlorid of aluminum and an alkali metal.
- An electrolyte comprising chlorid of v zinc anda double chlorid of aluminum and" sodium.
- An electrolyte comprising chlorid of zinc, an alkaline chloridand a double chlorid of aluminum and another metal.
- An electrolyte comprising chlorid of zinc, an alkaline chlorid and a double chlorid of aluminum and an alkali metal.
- An electrolyte comprising a double chlorid of zinc and another metal and a double chlorid'of aluminum and another metal.
- An electrolyte comprising a clouble-- chlorid of aluminum and an alkali metal 10 chlnrid of zinc and an alkali metal and a and an organic addition agent.
- An electrolyte comprising a double Came YU WEN,
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Electrolytic Production Of Metals (AREA)
Description
UNITED.- STATES PATENT. OFFICE. a
EDWARD F. KERN, OF NEW YORK, N. Y., ASSIGNOR 0F ONE-HALF TO PERCY S. BROWN,-
: OF NEW YORK, N. Y. v
nLEcrnoLY'rE r03 nnrosrrme zn'vc.
No Drawing.-
Specification of Letters Patent.
Patented Aug. 1, 1911.
Application filed October 11, 1910. Serial No. 586,476.
To all whom it may concern:
Be it known that I, EDWARD F. KERN, a
' citizen of the United States, residing at New This invention relates to the electrodeposition of zinc and has particular reference to an improved process of electrodepositing zinc and to a novel electrolyte for use in the practice of such process.
I have discovered that a; dense coherent deposit of Zinc, free from crystals of compounds of zinc or anyofthem, can be obtained by the electrolysis of a bath containing chlorid of zinc, preferably combined with an alkali or alkaline earth metal in the form of a double chlorid of zinc and alkali or alkaline earth metal, as for example sodium, together with chlorid of aluminum and an alkali or alkaline earth metal, preferably combined in the form of a double chlorid of aluminum and such alkali or alkaline earth metal, as for example sodium. I have also discovered that the addition of an organic addition agent such, for example,
as grape sugar, improves the bath and that.
the operation of the process is still further I preferably to a temperature of about C.
A preferred embodiment of my improved electrolyte contains the following ingredients in the approximate proportions speci- Zinc chlorid (ZnCl 10 parts by weight Sodium aluminum chlorid greater portion of which is zinc.
A particular advantage of my improved electrolyte is that a high current density is I obtainable with a very low current voltage. In the use of the preferred embodiment of my electrolyte above set forth. with a current of 20 amperes per square foot at a temperature of 40 C. the voltage was only from .55 to .66 and a very dense, adherent deposit was obtained which was wholly free from zinc oxid or other zinc salt.
While I. prefer to employ the alkali metals with the zinc and aluminum chlorids,
some measure of success may be obtained by substituting alkaline earth metals therefor and to this extent the alkaline earth metals are contemplated as equivalents of the alkali metals in the practice of my invention.
W'hile I have stated the proportions which I prefer to employ and the temperature at which the electrolysis is preferably practiced, it is to be understood that these proportions may be widely varied, equivalents employed. and that commercially"satisfactory results may be obtained by omitting certain of the ingredients, notably the grape sugar, and that the electrolysis may be carried .out at any desired temperature.
Having thus fully described my invention what I claim as new and desire to secure by Letters Patent, is
1. An electrolyte comprising chlorid of zinc, and a double chlorid of aluminum and another metal.
2. An electrolyte comprising chlorid of zinc, and a double chlorid of aluminum and an alkali metal.
3. An electrolyte comprising chlorid of v zinc anda double chlorid of aluminum and" sodium.
4. An electrolyte comprising chlorid of zinc, an alkaline chloridand a double chlorid of aluminum and another metal.
5. An electrolyte comprising chlorid of zinc, an alkaline chlorid and a double chlorid of aluminum and an alkali metal.
6. An electrolyte comprising a double chlorid of zinc and another metal and a double chlorid'of aluminum and another metal.
7. An electrolyte comprising a clouble-- chlorid of aluminum and an alkali metal 10 chlnrid of zinc and an alkali metal and a and an organic addition agent.
double chlorid of aluminum and an alkali In witness whereof I aflix my signature metalA l l h d f in presence of two witnesses.
8. n e ectro yte comprisin c lori o v zinc, a double clilorid of aluml num and an EDWARD KERN alkali metal and an organic addition agent. Witnesses:
9. An electrolyte comprising a double Came YU WEN,
chlorid of zinc and an alkali metal, a double E. L. KURTH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58647610A US999655A (en) | 1910-10-11 | 1910-10-11 | Electrolyte for depositing zinc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58647610A US999655A (en) | 1910-10-11 | 1910-10-11 | Electrolyte for depositing zinc. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US999655A true US999655A (en) | 1911-08-01 |
Family
ID=3067983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US58647610A Expired - Lifetime US999655A (en) | 1910-10-11 | 1910-10-11 | Electrolyte for depositing zinc. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US999655A (en) |
-
1910
- 1910-10-11 US US58647610A patent/US999655A/en not_active Expired - Lifetime
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