CN107779920A - A kind of preparation method of rhodium liquid - Google Patents
A kind of preparation method of rhodium liquid Download PDFInfo
- Publication number
- CN107779920A CN107779920A CN201610804013.3A CN201610804013A CN107779920A CN 107779920 A CN107779920 A CN 107779920A CN 201610804013 A CN201610804013 A CN 201610804013A CN 107779920 A CN107779920 A CN 107779920A
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- Prior art keywords
- beaker
- pure
- rhodium
- preparation
- analysis
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- 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
- C25D3/50—Electroplating: Baths therefor from solutions of platinum group metals
Abstract
The present invention provides a kind of preparation method of rhodium liquid, including by rhodium powder, potassium acid sulfate analysis it is pure be put into enamelware pot be well mixed after, it is pure in its surface uniform fold potassium acid sulfate analysis, enamelware pot is put into Muffle furnace and heated, mixed liquor, which is transferred in beaker, after cooling makes its heating dissolving, then by follow bad formula multiplex vavuum pump with qualitative filter paper sealing filter conical beaker in filter, it is pure to add sodium hydroxide analysis, standing is after complete precipitation, after limpid no color is presented in the color of water, the clear water in beaker is removed, leaves yellow solution；The solution left, with thin qualitative filter paper, continuously filtering is multiple, is then transferred in another beaker, adds moderate amount of sulfuric acid analysis is pure to be sufficiently stirred, then adds appropriate ionized water heating, heat while stirring, be heated to solution and amber transparent state occur.For the rhodium liquid of the present invention in normal use, the change of gained coating brightness is about ± 0.5, brightness stability, and is formulated simply, and easily operated, utilization rate is high, reduces cost.
Description
Technical field
The present invention relates to field of electroplating, specifically a kind of preparation method of rhodium liquid.
Background technology
With developing rapidly for China's economy, the continuous improvement of living standards of the people, the bullion industry in China achieves
The development advanced by leaps and bounds.Wherein Silver Jewelry obtained people extensively like, still, Silver Jewelry exist meet sulphur blackening phenomenon from
And influence various aspects of performance.Therefore, ornaments are researched and developed with rhodanizing material for ensureing people's physical safety and lifting China pearl
Status of the precious jewellery industry in international competition is significant.
With regard in jewellery industry, white gold alloy and silver alloy are the maximum ornaments precious metal materials of current dosage.Jin He
Gold and pure gold ratio, hardness is high, price is low, is widely used in high-grade handicraft and jewellery, but white gold alloy has Nickel Release Rate
The problem of crossing conference causes human allergy, and alloy color burnt hair can be caused again by reducing the content of nickel in alloy.And silver alloy is present
The problem of sulfide staining.Research anti-tarnishing silver alloy at present, but effect still unobvious.In addition, silver and billon product exist
Crator is also easy to produce in processing welding process and the uneven phenomenon of color and luster occurs.
On the market most of white gold alloy and 925 silver jewelleries all can rhodanizing, rhodanizing product has whiteness high, has
Good beauty function；And it is corrosion-resistant, under natural environment, it can farthest protect silver products.As overlay coating,
In terms of rhodium is not only widely used in decorative electroplating, and in fields such as high sophisticated electronics, light industrys as a kind of important
Protective coating also have wide application.
The content of the invention
The technical problem to be solved in the present invention is to overcome the defects of existing, there is provided it is a kind of it is easy to operate, producing efficiency is high
The preparation method of rhodium liquid.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
A kind of preparation method of rhodium liquid, it comprises the following steps：
(1) 1 gram of rhodium powder, pure 45 grams of potassium acid sulfate analysis are put into enamelware pot and are sufficiently mixed and stir, on its surface
5 grams of potassium acid sulfate analyses of uniform fold are pure；
(2) enamelware pot is put into Muffle furnace and is heated to 600 degree and continues 4 hours；
(3) enamelware pot is taken out to put from Muffle furnace and cooled down in its natural state, mixed liquor is transferred in beaker after cooling；
(4) stirring rod is put into beaker and adds 150 milliliters of ionized water, beaker is placed on agitator heat it is molten
Solution；
(5) until completely dissolved by follow bad formula multiplex vavuum pump with qualitative filter paper sealing filter conical beaker in filter；
(6) the sodium hydroxide analysis that the solution after filtering adds 10% is pure, makes the control of its pH value in 7-7.5；
(7) it is sufficiently stirred 10 minutes or so；
(8) stand after complete precipitation, after the limpid no color of color presentation of water, remove the clear water in beaker, leave Huang
Color solution；
(9) solution left is once changed once with the continuous filter 23 of thin qualitative filter paper -5 times and often filtering qualitative
Filter paper cleans a qualitative filter paper with ionized water；
(10) and then be transferred in another beaker, add moderate amount of sulfuric acid analysis it is pure be sufficiently stirred, then add it is appropriate from
Sub- water heating；
(11) heat while stirring, be heated to solution and amber transparent state occur.
Further, the enamelware pot is ceramic enamelware pot.
Further, the stirring rod is ceramic stirring rod.
Further, the agitator is constant temperature blender with magnetic force.
Further, temperature≤400 ° of the agitator, water temperature are 65 ° -75 °.
For the rhodium liquid of the present invention in normal use, the change of gained coating brightness is about ± 0.5, brightness stability, and matches somebody with somebody
Side is simple, easily operated, and utilization rate is high, reduces cost.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, the present invention is carried out below further
Ground describes in detail.It should be appreciated that preferred embodiment described herein is merely to illustrate and explain the present invention, it is not used to limit
The present invention.
A kind of preparation method of rhodium liquid of the present invention, it comprises the following steps：
(1) 1 gram of rhodium powder, pure 45 grams of potassium acid sulfate analysis are put into ceramic enamelware pot and are sufficiently mixed and stir, at it
Uniform fold 5 grams of potassium acid sulfate analyses in surface are pure；
(2) enamelware pot is put into Muffle furnace and is heated to 600 degree and continues 4 hours；
(3) enamelware pot is taken out to put from Muffle furnace and cooled down in its natural state, mixed liquor is transferred in beaker after cooling；
(4) a ceramic stirring rod is put into beaker and adds 150 milliliters of ionized water, beaker, which is placed on constant temperature magnetic force, to be stirred
Mix and dissolving is heated on device, the temperature of the constant temperature blender with magnetic force is 400 °, and water temperature is 70 °；
(5) until completely dissolved by follow bad formula multiplex vavuum pump with qualitative filter paper sealing filter conical beaker in filter；
(6) the sodium hydroxide analysis that the solution after filtering adds 10% is pure, makes the control of its pH value in 7-7.5；
(7) it is sufficiently stirred 10 minutes or so；
(8) stand after complete precipitation, after the limpid no color of color presentation of water, remove the clear water in beaker, leave Huang
Color solution；
(9) solution left is once changed once with the continuous filter 23 of thin qualitative filter paper -5 times and often filtering qualitative
Filter paper cleans a qualitative filter paper with ionized water；
(10) and then be transferred in another beaker, add moderate amount of sulfuric acid analysis it is pure be sufficiently stirred, then add it is appropriate from
Sub- water heating；
(11) heat while stirring, be heated to solution and amber transparent state occur.
By rhodium liquid made from the above method in normal use, the change of gained coating brightness is about ± 0.5, brightness
It is stable, and be formulated simply, easily operated, utilization rate is high, reduces cost.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although with reference to foregoing reality
Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic.All essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (5)
1. a kind of preparation method of rhodium liquid, it is characterized in that：It comprises the following steps：
(1) 1 gram of rhodium powder, pure 45 grams of potassium acid sulfate analysis are put into enamelware pot and are sufficiently mixed and stir, it is uniform on its surface
5 grams of potassium acid sulfate analyses of covering are pure；
(2) enamelware pot is put into Muffle furnace and is heated to 600 degree and continues 4 hours；
(3) enamelware pot is taken out to put from Muffle furnace and cooled down in its natural state, mixed liquor is transferred in beaker after cooling；
(4) stirring rod is put into beaker and adds 150 milliliters of ionized water, beaker is placed on to heat on agitator and dissolved；
(5) until completely dissolved by follow bad formula multiplex vavuum pump with qualitative filter paper sealing filter conical beaker in filter；
(6) the sodium hydroxide analysis that the solution after filtering adds 10% is pure, makes the control of its pH value in 7-7.5；
(7) it is sufficiently stirred 10 minutes or so；
(8) stand after complete precipitation, after the limpid no color of color presentation of water, remove the clear water in beaker, it is molten to leave yellow
Liquid；
(9) solution left to be filtered with the continuous filter 23 of thin qualitative filter paper -5 times and often and once changes a qualitative filter paper
Or clean a qualitative filter paper with ionized water；
(10) and then it is transferred in another beaker, adds moderate amount of sulfuric acid analysis is pure to be sufficiently stirred, then add appropriate ionized water
Heating；
(11) heat while stirring, be heated to solution and amber transparent state occur.
2. a kind of preparation method of rhodium liquid according to claim 1, it is characterized in that：The enamelware pot is ceramic enamelware pot.
3. a kind of preparation method of rhodium liquid according to claim 1, it is characterized in that：The stirring rod is ceramic stirring rod.
4. a kind of preparation method of rhodium liquid according to claim 1, it is characterized in that：The agitator is temperature constant magnetic stirring
Device.
5. a kind of preparation method of rhodium liquid according to claim 1, it is characterized in that：Temperature≤400 ° of the agitator,
Water temperature is 65 ° -75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610804013.3A CN107779920A (en) | 2016-08-26 | 2016-08-26 | A kind of preparation method of rhodium liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610804013.3A CN107779920A (en) | 2016-08-26 | 2016-08-26 | A kind of preparation method of rhodium liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107779920A true CN107779920A (en) | 2018-03-09 |
Family
ID=61451979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610804013.3A Pending CN107779920A (en) | 2016-08-26 | 2016-08-26 | A kind of preparation method of rhodium liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107779920A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63266087A (en) * | 1987-04-22 | 1988-11-02 | Ishifuku Kinzoku Kogyo Kk | Rhodium sulfate plating solution and method for maintaining function thereof |
| CN1304382A (en) * | 1999-05-06 | 2001-07-18 | 朗迅科技公司 | Phodium sulfate compounds and rhodium plating |
| CN103484905A (en) * | 2013-10-12 | 2014-01-01 | 中南大学 | Method for electroplating rhodium coating |
| CN105506685A (en) * | 2016-01-25 | 2016-04-20 | 东莞联桥电子有限公司 | Novel rhodanizing process for PCBs |
-
2016
- 2016-08-26 CN CN201610804013.3A patent/CN107779920A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63266087A (en) * | 1987-04-22 | 1988-11-02 | Ishifuku Kinzoku Kogyo Kk | Rhodium sulfate plating solution and method for maintaining function thereof |
| CN1304382A (en) * | 1999-05-06 | 2001-07-18 | 朗迅科技公司 | Phodium sulfate compounds and rhodium plating |
| CN103484905A (en) * | 2013-10-12 | 2014-01-01 | 中南大学 | Method for electroplating rhodium coating |
| CN105506685A (en) * | 2016-01-25 | 2016-04-20 | 东莞联桥电子有限公司 | Novel rhodanizing process for PCBs |
Non-Patent Citations (1)
| Title |
|---|
| 牛飞 等: "贵金属铑电镀液的研究进展", 《黄金》 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180309 |
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| RJ01 | Rejection of invention patent application after publication |