JPS5554509A - Production of fine gold powder - Google Patents

Production of fine gold powder

Info

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
Application number
JP12732378A
Other languages
Japanese (ja)
Other versions
JPS5761088B2 (en
Inventor
Yoshio Kawasumi
Mitsuo Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
Nippon Mining Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Mining Co Ltd filed Critical Nippon Mining Co Ltd
Priority to JP12732378A priority Critical patent/JPS5554509A/en
Publication of JPS5554509A publication Critical patent/JPS5554509A/en
Publication of JPS5761088B2 publication Critical patent/JPS5761088B2/ja
Granted legal-status Critical Current

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
JP12732378A 1978-10-18 1978-10-18 Production of fine gold powder Granted JPS5554509A (en)

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)

* Cited by examiner, † Cited by third party
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 metal film and method for manufacturing ceramic electronic component
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 (1)

* Cited by examiner, † Cited by third party
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5035497A (en) * 1973-06-21 1975-04-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5035497A (en) * 1973-06-21 1975-04-04

Cited By (4)

* Cited by examiner, † Cited by third party
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 metal film and method for manufacturing ceramic electronic component
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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