CN104514021A - Novel cyanogen-free material for gold plating namely ethylene diamine-critic acid-gold and preparation method thereof - Google Patents
Novel cyanogen-free material for gold plating namely ethylene diamine-critic acid-gold and preparation method thereof Download PDFInfo
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- CN104514021A CN104514021A CN201310446495.6A CN201310446495A CN104514021A CN 104514021 A CN104514021 A CN 104514021A CN 201310446495 A CN201310446495 A CN 201310446495A CN 104514021 A CN104514021 A CN 104514021A
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- quadrol
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- 239000010931 gold Substances 0.000 title claims abstract description 8
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 5
- 238000007747 plating Methods 0.000 title abstract description 7
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000000463 material Substances 0.000 title abstract 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 title abstract 3
- 239000005977 Ethylene Substances 0.000 title abstract 3
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 claims abstract description 23
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000001508 potassium citrate Substances 0.000 claims abstract description 14
- 239000000243 solution Substances 0.000 claims description 54
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 claims description 26
- 235000015870 tripotassium citrate Nutrition 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- 229910021505 gold(III) hydroxide Inorganic materials 0.000 claims description 11
- UJLXKYSGBFPPAD-UHFFFAOYSA-N gold;2-hydroxypropane-1,2,3-tricarboxylic acid Chemical compound [Au].OC(=O)CC(O)(C(O)=O)CC(O)=O UJLXKYSGBFPPAD-UHFFFAOYSA-N 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 239000011591 potassium Substances 0.000 claims description 9
- 229910052700 potassium Inorganic materials 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 8
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 6
- SJUCACGNNJFHLB-UHFFFAOYSA-N O=C1N[ClH](=O)NC2=C1NC(=O)N2 Chemical compound O=C1N[ClH](=O)NC2=C1NC(=O)N2 SJUCACGNNJFHLB-UHFFFAOYSA-N 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000001103 potassium chloride Substances 0.000 claims description 3
- 235000011164 potassium chloride Nutrition 0.000 claims description 3
- 159000000000 sodium salts Chemical class 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 159000000007 calcium salts Chemical class 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000004821 distillation Methods 0.000 claims description 2
- 150000004677 hydrates Chemical class 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- NICDRCVJGXLKSF-UHFFFAOYSA-N nitric acid;trihydrochloride Chemical compound Cl.Cl.Cl.O[N+]([O-])=O NICDRCVJGXLKSF-UHFFFAOYSA-N 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims 1
- -1 tetracol phenixin Chemical compound 0.000 claims 1
- 239000002253 acid Substances 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 abstract 1
- 229960002635 potassium citrate Drugs 0.000 abstract 1
- 235000011082 potassium citrates Nutrition 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 2
- 239000013064 chemical raw material Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- TWOUKDZZUYUXED-UHFFFAOYSA-N [Au].[K].C(CC(O)(C(=O)O)CC(=O)O)(=O)O Chemical compound [Au].[K].C(CC(O)(C(=O)O)CC(=O)O)(=O)O TWOUKDZZUYUXED-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002351 wastewater Substances 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
- C25D3/48—Electroplating: Baths therefor from solutions of gold
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to a novel cyanogen-free material for gold plating namely ethylene diamine-critic acid-gold and a preparation method thereof. The formula of the ethylene diamine-critic acid-gold is C8H16O7N2Au. The novel material is prepared through reactions among chloroauric acid, potassium citrate, and ethylene diamine in water. The novel material does not contain any cyanogen, and has a good gold-plating effect.
Description
Technical field:
The invention belongs to technical field of chemistry, be specifically related to gold-plated quadrol citric acid gold and preparation method.
Background technology:
In gold-plated industry, during plating, most enterprise of China selects inorganic electrogilding salt---and-potassium cyanaurite is as gold-plated main salt, according to solidity to corrosion and the coating of workpiece, the characteristic of plating piece prepares acid gold-plated or alkaline gold plating solution again, to meet the requirement to processing condition.
Existing craft of gilding, mainly contains prussiate gold-plated, and sulphite is gold-plated, and Citrate trianion is gold-plated, and except sulphite is gold-plated, other gold-plated potassium cyanaurite KAu (CN) 2 that all adopt is as gold-plated main salt.There is a small amount of gold-plated reagent of the low cyanogen of also employing.When alkaline cyaniding is gold-plated, potassium cyanide too high levels in the electroplate liquid of this craft of gilding, toxicity is comparatively large, and most enterprises seldom uses.Citrate trianion is gold-plated, and to belong to slightly acidic gold-plated, applies more in gold-plated industry, and it is also as containing golden main salt with potassium cyanaurite.As everyone knows, the toxicity of prussiate is extremely strong, its lethal quantity of potassium cyanaurite, is also highly toxic substance.With the electroplating solution that potassium cyanaurite is prepared, in the raffinate after plating, CN-content is 500-1089mg/L.The discharge of this cyanide wastewater, causes serious murder by poisoning and pollution to environment.
Summary of the invention:
The invention provides the novel material-quadrol citric acid gold without cyanogen.
This product is completely without cyanogen.
For reaching above object, the molecular formula of this quadrol citric acid gold is: C8H16O7N2Au.
The present invention also proposes a kind of preparation method of above-mentioned gold-plated quadrol citric acid gold potassium, comprises the steps:
Gold is dissolved in chloroazotic acid by 01., and distillation, obtains solid hydrochloro-auric acid.
02. at ambient pressure, and hydrochloro-auric acid joins in hot water and makes it to dissolve completely.
03. by above-mentioned solution warms to 80 degree, by Tripotassium Citrate, quadrol adds, and mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution.
This solution moves in water cooler by 04., passes into frozen water cooling, keeps 6 hours, lurid precipitation appears in water cooler bottle wall at 0-5 degree, cross and filter moisture, obtain pulverulent solids.
Lurid xln moves in baking oven by 05., and 50 degree of dryings are finished product in 10 hours.
06. by chlorauric acid solution, Tripotassium Citrate, and quadrol adds in solution, adds catalyst A, and mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution.
07 by chlorauric acid solution, Tripotassium Citrate, and quadrol adds in solution, adds catalyst B, and mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution.
08 by chlorauric acid solution, citric acid, and quadrol adds in the aqueous solution, and mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution.
09 by hydrochloro-auric acid, Tripotassium Citrate, and quadrol adds in acetonitrile solution, and mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution.
10 by hydrochloro-auric acid, Tripotassium Citrate, and quadrol adds in methanol solution, and mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution.
11 by potassium chloraurate, Tripotassium Citrate, and quadrol adds in tetrahydrofuran (THF) (tetracol phenixin, ethanol, toluene) solution, and mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution.
12 by hydrochloro-auric acid, Tripotassium Citrate, and quadrol adds in the aqueous solution, and adjust ph value to be 12 with potassium hydroxide, mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution, obtains its sylvite.Use the same method, its sodium salt can be obtained, calcium salt etc.
13 by chlorauric acid solution, citric acid, and quadrol adds in the aqueous solution, and adjust ph value to be 2 with hydrochloric acid, mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution, obtains its hydrochloride.Use the same method, its vitriol can be obtained, carbonate, nitric acid etc.
14 by hydrochloro-auric acid, Tripotassium Citrate, and quadrol adds in the aqueous solution, and mixing solutions reacts 24 hours, pyroreaction 14 hours, and detection completes, and may obtain its polymer form.
15 drying temperatures can obtain one water time different, or two water hydrates.Product is light yellow or off-white color solid.
The advantage of quadrol citric acid gold provided by the invention is: without cyanogen, can not cause the injury of personnel and the pollution of environment.This product is clean electronic chemical raw material, can replace traditional electronic chemical raw material potassium cyanaurite completely.
Below in conjunction with specific embodiment, a nearly step explanation is done to foregoing.Should be understood that these embodiments are not limited to for illustration of the present invention limit the scope of the invention.
Example one:
At normal temperatures and pressures, 5 grams of hydrochloro-auric acids dissolve in 400ML water, heat up 80 degree, add 8 grams of Tripotassium Citrates, 2 grams of quadrols, keep temperature 24 hours.Reaction completes, and obtains faint yellow solid 4.8 grams.
Example two:
At normal temperatures and pressures, 5 grams of hydrochloro-auric acids dissolve in 400ML ethanol, heat up 80 degree, add 8 grams of Tripotassium Citrates, 2 grams of quadrols, keep temperature 24 hours.Reaction completes, and obtains faint yellow solid 4.7 grams.
Example three:
At normal temperatures and pressures, 5 grams of hydrochloro-auric acids dissolve in 400ML methyl alcohol, heat up 80 degree, add 8 grams of Tripotassium Citrates, 2 grams of quadrols, keep temperature 24 hours.Reaction completes, and obtains faint yellow solid 4.5 grams.
Example four:
At normal temperatures and pressures, 5 grams of potassium chloraurates dissolve in 400ML toluene, heat up 80 degree, add 8 grams of Tripotassium Citrates, 2 grams of quadrols, keep temperature 24 hours.Reaction completes, and obtains faint yellow solid 4.55 grams.
Example five:
At normal temperatures and pressures, 5 grams of hydrochloro-auric acids dissolve in 400ML water, and heat up 80 degree, add 8 grams of Tripotassium Citrates, 2 grams of quadrols, add catalyst A, keep temperature 24 hours.Reaction completes, and obtains faint yellow solid 4.5 grams.
Example six:
At normal temperatures and pressures, 5 grams of hydrochloro-auric acids dissolve in 400ML water, and heat up 80 degree, add 8 grams of Tripotassium Citrates, 2 grams of quadrols, add catalyst B, keep temperature 24 hours.Reaction completes, and obtains faint yellow solid 4.5 grams.
Example seven:
At normal temperatures and pressures, 5 grams of hydrochloro-auric acids dissolve in 400ML ethanol, heat up 80 degree, add 8 grams of Tripotassium Citrates, 2 grams of quadrols, and sodium hydroxide adjusts pH value to be 12, keep temperature 24 hours.Reaction completes, and obtains faint yellow solid sodium salt 5.5 grams.
Example eight:
At normal temperatures and pressures, 5 grams of hydrochloro-auric acids dissolve in 400ML methyl alcohol, heat up 80 degree, add 8 grams of Tripotassium Citrates, 2 grams of quadrols, and potassium hydroxide adjusts pH value to be 12, keep temperature 24 hours.Reaction completes, and obtains faint yellow solid sylvite 5.6 grams.
Example nine:
At normal temperatures and pressures, 5 grams of hydrochloro-auric acids dissolve in 400ML water, heat up 80 degree, add 8 grams of Tripotassium Citrates, 2 grams of quadrols, and hydrochloric acid adjusts pH value to be 2, keep temperature 24 hours.Reaction completes, and obtains faint yellow solid hydrochloride 5.0 grams.
Claims (4)
1. the gold-plated quadrol citric acid gold without cyanogen, is characterized by: the molecular formula of this quadrol citric acid gold is: C8H16O7N2Au.
2. prepare a method for the gold-plated quadrol citric acid gold without cyanogen as claimed in claim 1, its feature is as follows:
A. be dissolved in chloroazotic acid by gold, distillation, obtains solid hydrochloro-auric acid
B. at ambient pressure, hydrochloro-auric acid joins in hot water and makes it to dissolve completely
C. by above-mentioned solution warms to 80 degree, by Tripotassium Citrate, quadrol adds, and mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution
D. this solution is moved in water cooler, pass into frozen water cooling, keep 6 hours at 0-5 degree, lurid precipitation appears in water cooler bottle wall, cross and filter moisture, obtain pulverulent solids
E. by potassium chloraurate solution, citric acid, quadrol adds in the aqueous solution, and mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution
F. by hydrochloro-auric acid, Tripotassium Citrate, quadrol adds in acetonitrile solution, and mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution
G. also can be methyl alcohol, tetrahydrofuran (THF), tetracol phenixin, ethanol, toluene etc. at above-mentioned middle solvent.
3. the quadrol citric acid gold method without cyanogen according to claim 1 is also:
A. by chlorauric acid solution, Tripotassium Citrate, quadrol adds in solution, adds catalyst A, and mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution
B. in a upper a item, also can add catalyst B, mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution.
4. the quadrol citric acid gold without cyanogen according to claim 1, its derivative method is:
A. by hydrochloro-auric acid, Tripotassium Citrate, quadrol adds in the aqueous solution, and adjust ph value to be 12 with potassium hydroxide, mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution, obtains its sylvite.Use the same method, its sodium salt can be obtained, calcium salt etc.
B. by chlorauric acid solution, citric acid, quadrol adds in the aqueous solution, and adjust ph value to be 2 with hydrochloric acid, mixing solutions reacts 24 hours, and detection completes, and obtains lurid solution, obtains its hydrochloride.Use the same method, its vitriol can be obtained, carbonate, nitric acid etc.
C. by hydrochloro-auric acid, Tripotassium Citrate, quadrol adds in the aqueous solution, and mixing solutions reacts 24 hours, pyroreaction 14 hours, and detection completes, and may obtain its polymer form.
D. also one water can be obtained when drying temperature is different, or two water hydrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310446495.6A CN104514021A (en) | 2013-09-27 | 2013-09-27 | Novel cyanogen-free material for gold plating namely ethylene diamine-critic acid-gold and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310446495.6A CN104514021A (en) | 2013-09-27 | 2013-09-27 | Novel cyanogen-free material for gold plating namely ethylene diamine-critic acid-gold and preparation method thereof |
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| CN104514021A true CN104514021A (en) | 2015-04-15 |
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| CN201310446495.6A Pending CN104514021A (en) | 2013-09-27 | 2013-09-27 | Novel cyanogen-free material for gold plating namely ethylene diamine-critic acid-gold and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105669430A (en) * | 2016-03-10 | 2016-06-15 | 昆明理工大学 | Method for synthesizing gold potassium citrate for gold plating through one step |
| CN107058987A (en) * | 2017-04-28 | 2017-08-18 | 苏州鑫旷新材料科技有限公司 | A kind of chemical gold plating liquid without cyanogen |
| CN108350575A (en) * | 2015-12-18 | 2018-07-31 | 罗门哈斯电子材料有限责任公司 | Golden electroplating solution |
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|---|---|---|---|---|
| US6087516A (en) * | 1999-08-10 | 2000-07-11 | Tanaka Kikinzoku Kogyo K.K. | Process for producing bis (1,2-ethanediamine) gold chloride and gold-plating solution containing the gold chloride |
| CN101172946A (en) * | 2007-11-20 | 2008-05-07 | 三门峡市恒生生化技术有限公司 | Gold potassium lemon acid for gold plating and method for producing the same |
| CN101250730A (en) * | 2007-11-20 | 2008-08-27 | 三门峡市恒生生化技术有限公司 | Lemon acid gold salt for gold plating and manufacture method thereof |
| CN101671839A (en) * | 2009-08-31 | 2010-03-17 | 三门峡恒生科技研发有限公司 | Citric acid gold potassium for gilding and preparation method thereof |
| CN103290439A (en) * | 2012-02-22 | 2013-09-11 | 江涛 | Novel environment-friendly gold plating material potassium aurous citrate and preparation method thereof |
-
2013
- 2013-09-27 CN CN201310446495.6A patent/CN104514021A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6087516A (en) * | 1999-08-10 | 2000-07-11 | Tanaka Kikinzoku Kogyo K.K. | Process for producing bis (1,2-ethanediamine) gold chloride and gold-plating solution containing the gold chloride |
| CN101172946A (en) * | 2007-11-20 | 2008-05-07 | 三门峡市恒生生化技术有限公司 | Gold potassium lemon acid for gold plating and method for producing the same |
| CN101250730A (en) * | 2007-11-20 | 2008-08-27 | 三门峡市恒生生化技术有限公司 | Lemon acid gold salt for gold plating and manufacture method thereof |
| CN101671839A (en) * | 2009-08-31 | 2010-03-17 | 三门峡恒生科技研发有限公司 | Citric acid gold potassium for gilding and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108350575A (en) * | 2015-12-18 | 2018-07-31 | 罗门哈斯电子材料有限责任公司 | Golden electroplating solution |
| CN105669430A (en) * | 2016-03-10 | 2016-06-15 | 昆明理工大学 | Method for synthesizing gold potassium citrate for gold plating through one step |
| CN107058987A (en) * | 2017-04-28 | 2017-08-18 | 苏州鑫旷新材料科技有限公司 | A kind of chemical gold plating liquid without cyanogen |
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