METHOD FOR PRODUCING NITROGEN-CONTAINING ZINC OXIDE POWDER

PROBLEM TO BE SOLVED: To provide methods for safely and easily producing nitrogen-containing zinc oxide powder which is fine, has a large specific surface area and is colored and transparent with easily available raw materials without requiring any special apparatus and severe reaction conditions. S...

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Hauptverfasser:	IWATA JUN, TERABE ATSUKI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F HUMAN NECESSITIES HYGIENE INORGANIC CHEMISTRY MEDICAL OR VETERINARY SCIENCE METALLURGY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide methods for safely and easily producing nitrogen-containing zinc oxide powder which is fine, has a large specific surface area and is colored and transparent with easily available raw materials without requiring any special apparatus and severe reaction conditions. SOLUTION: The first method includes mixing basic zinc carbonate powder with at least one selected from ammonium carbonate powder and ammonium hydrogencarbonate powder and firing this mixture at a temperature of 250 to