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A study on the zinc oxide crystalline powder synthesized by zinc chloride solution and sodium-based alkali precipitants

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2023, 33(1), pp.15-21
  • DOI : 10.6111/JKCGCT.2023.33.1.015
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : February 1, 2023
  • Accepted : February 9, 2023
  • Published : February 28, 2023

Kim Dae Weon 1 Dae-Hwan Jang 1 Boram Kim 1

1고등기술연구원연구조합

Accredited

ABSTRACT

To prepare zinc oxide powder, three types of sodium-based alkali precipitants such as NaOH, Na₂CO₃, NaOH/NaHCO₃ were compared to the differences in the manufacturing process of zinc oxide powder from zinc precipitate products like intermediates with the consideration of thermodynamic reaction. The prepared zinc precipitate products by the reaction with the sodium-based alkali precipitant were confirmed to respectively hydroxy zinc chloride (Zn5(OH)8Cl₂·H₂O) and zinc carbonate hydroxide (Zn5(OH)6(CO₃)₂·H₂O) from XRD analysis. Zinc oxide particles were compared in heat treatment at 800°C according to sodium-based alkali precipitants. The mixed NaOH and NaHCO₃ of alkali precipitant reaction was contributed to synthesize the more uniform zinc oxide particles.

Citation status

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