天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

Zinc Crystal

Nov 21,2023

Zinc is often used as alloy materials.  The layer of basic carbonate of Zn that works as a protective layer is formed in damp air. When heated in air or oxygen, greenish white light is emitted during the formation of oxide. A single crystal of ZnO belongs to the hexagonal system with the lattice constants of a=0.3243 and c=0.5195 nm. Large single crystals of ZnO are grown by vapor phase method using transport agents.

ZINC

Crystal System

The space lattice of zinc belongs to the hexagonal system, and its closed-packed hexagonal lattice has lattice constants of a=0.2659 nm and c=0.4937 nm (25℃).

Production

Oxides are obtained by burning the zinc blend ZnS. Zn is obtained by sintering the oxides further in a clay retort mixed with carbon. The purity of conventional industry grade zinc is on the order of 98%–99.99%. A single crystal is grown by using the horizontal Stockbarger method. To deposit vacuum-evaporated films, source material of Zn is directly heated in a conical-type basket heater of W, Ta, Mo, or Nb, externally heated in a aluminum or iron crucible using a nichrome heater, or direct joule heated using a carbon crucible. The rate of evaporation is 1.9×10-4g/cm2s at the evaporation temperature (sublimation) of 343℃.

  • Related articles
  • Related Qustion
See also
4

The space lattice of Tungsten W belongs to the cubic system, and its body-centered cubic lattice has a lattice constant of a=0.3158 nm.....

Nov 21,2023Inorganic chemistry
4

Oleic acid is the most widely distributed natural fatty acid and is present in practically all lipids.....

Nov 21,2023Biochemical Engineering

ZINC

7440-66-6

ZINC manufacturers

  • zinc powder
  •  zinc powder
  • $12.00 / 1kg
  • 2024-05-01
  • CAS:
  • Min. Order: 1kg
  • Purity: 98%
  • Supply Ability: 20T
  • zinc powder
  •  zinc powder
  • $12.00 / 1kg
  • 2024-05-01
  • CAS:
  • Min. Order: 1kg
  • Purity: 98%
  • Supply Ability: 20T