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Calcium zirconate

Calcium zirconate is an inorganic compound, a salt of calcium and zirconium acid with the formula CaZrO 3 , colorless crystals, insoluble in water.

Calcium Zirconate
General
Systematic
name
Calcium Zirconate
Traditional namesCalcium Zirconium (meta); calcium metacirconate
Chem. formulaCaZrO 3
Physical properties
conditioncolorless crystals
Molar mass179.30 g / mol
Density4.78; 4.95 g / cm³
Thermal properties
T. melt.2550 ° C
Classification
Reg. CAS number12013-47-7
Reg. EINECS number234-586-6

Content

  • 1 Receiving
  • 2 Physical properties
  • 3 notes
  • 4 Literature

Getting

  • In nature, there is a mineral lacargiite - CaZrO 3 with impurities of tin and titanium [1] . It has a gray, yellow-brown color. Hardness on the Mohs scale is 6–7 and the stroke color is white. The crystals are transparent elongated, massive yellow crystals can also form in the form of a thin crust along the mineral.
CaO+ZrO2→1400oCCaZrO3{\ displaystyle {\ mathsf {CaO + ZrO_ {2} \ {\ xrightarrow {1400 ^ {o} C}} \ CaZrO_ {3}}}}  

Physical Properties

Calcium zirconate forms colorless crystals of rhombic syngony , space group P bnm , cell parameters a = 0.5556 nm, b = 0.5715 nm, c = 0.7960 nm, Z = 4 [2] .

Not soluble in water.

Notes

  1. ↑ Lacargiitis. Material from GeoWiki, an open encyclopedia on Earth sciences.
  2. ↑ Evgeny V. Galuskin, Viktor M. Gazeev, Thomas Armbruster, et al. [ http://aram.unibe.ch/pdf/2008/Lakargiite%20Galuskin_p1903-1910_08%5B1%5D.pdf Lakargiite CaZrO 3 : A new mineral of the perovskite group from the North Caucasus, Kabardino-Balkaria, Russia] // American Mineralogist. - 2008 .-- T. 93 . - S. 1903-1910 . Archived March 22, 2014.

Literature

  • Chemical Encyclopedia / Editorial Board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1988. - T. 1. - 623 p.
  • Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 2nd ed., rev. - M.-L.: Chemistry, 1966. - T. 1. - 1072 p.
  • Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
  • CRC Handbook of Chemistry and Physics . - 89th Edition. - Taylor and Francis Group, LLC, 2008-2009.


Source - https://ru.wikipedia.org/w/index.php?title= Calcium zirconate&oldid = 100717617


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