JPS5554509A - Production of fine gold powder - Google Patents
Production of fine gold powderInfo
- Publication number
- JPS5554509A JPS5554509A JP12732378A JP12732378A JPS5554509A JP S5554509 A JPS5554509 A JP S5554509A JP 12732378 A JP12732378 A JP 12732378A JP 12732378 A JP12732378 A JP 12732378A JP S5554509 A JPS5554509 A JP S5554509A
- Authority
- JP
- Japan
- Prior art keywords
- gold
- powder
- ions
- deposited
- colloidal
- 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.)
- Granted
Links
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
PURPOSE: To produce the fine gold powder by letting part of gold ions in acidic gold chloride solution deposit as colloidal gold then letting residual dissolved gold ions be reduced and deposited by powder of less noble metals than gold.
CONSTITUTION: Part of gold ions are deposited as colloidal gold by such things as addition of hydroquinone to acidic gold chloride solution. Next, the reducing agent being metal powder of electrochemically less noble copper, iron or other than gold is added at about 0.999 equivalent or under to the residual dissolved gold ions. Along with the progression of reaction after the addition of the metal powder, the colloidal deposited gold gradually disappears and upon ending of the reaction it becomes slightly cohered light sponge form. This is washed with decantation followed by washing, filtering and drying, whereby the fine gold powder of grain size 1μ or under is obtained. This gold powder is effective for electronic industry such as conductive paste material and the like.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12732378A JPS5554509A (en) | 1978-10-18 | 1978-10-18 | Production of fine gold powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12732378A JPS5554509A (en) | 1978-10-18 | 1978-10-18 | Production of fine gold powder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5554509A true JPS5554509A (en) | 1980-04-21 |
JPS5761088B2 JPS5761088B2 (en) | 1982-12-22 |
Family
ID=14957081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12732378A Granted JPS5554509A (en) | 1978-10-18 | 1978-10-18 | Production of fine gold powder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5554509A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4133831A1 (en) * | 1991-09-14 | 1993-03-18 | Draegerwerk Ag | ELECTROCHEMICAL MEASURING CELL FOR DETECTING AND DETERMINING GASES AND DAMPERS, IN PARTICULAR HALOGEN HYDROGEN |
US5320703A (en) * | 1991-05-09 | 1994-06-14 | Canon Kabushiki Kaisha | Process for forming gold crystal film |
JP2004200190A (en) * | 2002-12-16 | 2004-07-15 | Kunihito Kawamoto | Method for forming metallic film and method for manufacturing ceramic electronic part |
CN105642916A (en) * | 2016-04-07 | 2016-06-08 | 江西农业大学 | Method for preparing feather-like gold micron material by using chemical method |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5919889U (en) * | 1982-07-30 | 1984-02-07 | 株式会社ヨコタ | foldable movable partition |
JPS6136484A (en) * | 1984-05-22 | 1986-02-21 | ペラ・ベ−・ヴエ− | Flexible room partition |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5035497A (en) * | 1973-06-21 | 1975-04-04 |
-
1978
- 1978-10-18 JP JP12732378A patent/JPS5554509A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5035497A (en) * | 1973-06-21 | 1975-04-04 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5320703A (en) * | 1991-05-09 | 1994-06-14 | Canon Kabushiki Kaisha | Process for forming gold crystal film |
DE4133831A1 (en) * | 1991-09-14 | 1993-03-18 | Draegerwerk Ag | ELECTROCHEMICAL MEASURING CELL FOR DETECTING AND DETERMINING GASES AND DAMPERS, IN PARTICULAR HALOGEN HYDROGEN |
JP2004200190A (en) * | 2002-12-16 | 2004-07-15 | Kunihito Kawamoto | Method for forming metallic film and method for manufacturing ceramic electronic part |
CN105642916A (en) * | 2016-04-07 | 2016-06-08 | 江西农业大学 | Method for preparing feather-like gold micron material by using chemical method |
Also Published As
Publication number | Publication date |
---|---|
JPS5761088B2 (en) | 1982-12-22 |
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