JPS5467596A - Preparation of hexagonal plate zinc oxide crystal powder - Google Patents

Preparation of hexagonal plate zinc oxide crystal powder

Info

Publication number
JPS5467596A
JPS5467596A JP13489277A JP13489277A JPS5467596A JP S5467596 A JPS5467596 A JP S5467596A JP 13489277 A JP13489277 A JP 13489277A JP 13489277 A JP13489277 A JP 13489277A JP S5467596 A JPS5467596 A JP S5467596A
Authority
JP
Japan
Prior art keywords
zinc oxide
crystal powder
strong alkaline
condition
dissolved
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.)
Pending
Application number
JP13489277A
Other languages
Japanese (ja)
Inventor
Takeshi Hirota
Koichi Kugimiya
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13489277A priority Critical patent/JPS5467596A/en
Publication of JPS5467596A publication Critical patent/JPS5467596A/en
Pending legal-status Critical Current

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  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

PURPOSE: For an inexpensive mass production of high-purity zinc oxide crystal powder having C face of hexagonal system, a zinc compound is dissolved in a strong alkaline solution, then zinc oxide microcrystals are synthetized by hydrothermal reaction from spontaneously generating nuclcus in a process of redeposition.
CONSTITUTION: A new process eliminates the need of inoculation and the condition of temperature gradient in high pressure container, and permits the use of a commercially available general reagent zinc oxide (average particle size about 0.3 micorns) as source material. In such a condition, a predetermined amount of zinc oxide is dissolved into a strong alkaline aqueous solution, then uniform hexagonal plate zinc oxide microcrystal is prepared by hydrothermal reaction from spontaneously generating nucleus in a process of deposition. Inclusion of 2 to 6 Li ion in the strong alkaline solution is useful to obtain more preferable crystal powder for directive ferrite source material having a ratio of width/thick (1/t) being 5 or more. Preferable preparation condition is selected such that a reaction temperature ranges from 25° to 400°C, with a pressure being 200 to 1000 atms. The resultant crystal powders have diameters of about 0.5 to 20 microns.
COPYRIGHT: (C)1979,JPO&Japio
JP13489277A 1977-11-09 1977-11-09 Preparation of hexagonal plate zinc oxide crystal powder Pending JPS5467596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13489277A JPS5467596A (en) 1977-11-09 1977-11-09 Preparation of hexagonal plate zinc oxide crystal powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13489277A JPS5467596A (en) 1977-11-09 1977-11-09 Preparation of hexagonal plate zinc oxide crystal powder

Publications (1)

Publication Number Publication Date
JPS5467596A true JPS5467596A (en) 1979-05-31

Family

ID=15138945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13489277A Pending JPS5467596A (en) 1977-11-09 1977-11-09 Preparation of hexagonal plate zinc oxide crystal powder

Country Status (1)

Country Link
JP (1) JPS5467596A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103721698A (en) * 2014-01-10 2014-04-16 中国天辰工程有限公司 Zinc oxide catalyst of ordered layered structure and preparation method thereof
JP2017141189A (en) * 2016-02-10 2017-08-17 学校法人同志社 Method for producing zinc oxide powder having antibacterial property
WO2018230325A1 (en) * 2017-06-15 2018-12-20 ライオン株式会社 Composition for use in oral cavity
WO2020215244A1 (en) * 2019-04-24 2020-10-29 香港纺织及成衣研发中心有限公司 Zinc oxide microcrystalline fiber and low-temperature template-free hydrothermal synthesis method therefor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103721698A (en) * 2014-01-10 2014-04-16 中国天辰工程有限公司 Zinc oxide catalyst of ordered layered structure and preparation method thereof
JP2017141189A (en) * 2016-02-10 2017-08-17 学校法人同志社 Method for producing zinc oxide powder having antibacterial property
WO2018230325A1 (en) * 2017-06-15 2018-12-20 ライオン株式会社 Composition for use in oral cavity
CN110198699A (en) * 2017-06-15 2019-09-03 狮王株式会社 Composition for oral cavity
WO2020215244A1 (en) * 2019-04-24 2020-10-29 香港纺织及成衣研发中心有限公司 Zinc oxide microcrystalline fiber and low-temperature template-free hydrothermal synthesis method therefor

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