Barium stannate

Crystal structure
	__ Ba 2+ __ Sn 4+ __ O 2−
General
Surname	Barium stannate
other names	Barium tin oxide; Barium tin trioxide;
Ratio formula	BaSnO 3
Brief description	white solid
External identifiers / databases
ECHA InfoCard	100,031,392
PubChem	165950
ChemSpider	145421
Wikidata	Q63117716
properties
Molar mass	304.04 g mol −1
density	7.24 g cm −3
solubility	poorly soluble in water; soluble in hydrochloric acid (trihydrate);
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Barium stannate is an inorganic chemical compound of barium from the group of stannates . With BaSnO ₃ , Ba ₃ Sn ₂ O ₇ and Ba ₂ SnO _{4 there are} three oxostannate (IV) compounds in the BaO-SnO ₂ binary system, but BaSnO ₃ is usually referred to as barium stannate , because of these BaSnO _{3 is} the best known, is the best studied and most useful compound.

Extraction and presentation

Barium stannate can be obtained by reacting tin (IV) oxide hydrate with barium hydroxide at 250 ° C or by reacting barium carbonate with tin (IV) oxide at 1200 to 1400 ° C.

{\ displaystyle {\ ce {BaCO3 + SnO2 -> BaSnO3 + CO2}}}

It is also possible to display it by reacting barium carbonate with tin (IV) chloride or tin (IV) oxide with barium nitrate .

{\ displaystyle {\ ce {2 SnO2 + 2 Ba (NO3) 2 -> 2 BaSnO3 + 4 NO2 + O2}}}

properties

Barium stannate and its trihydrate are white solids that are sparingly soluble in water. It is a semiconducting oxide with a large band gap of more than 3.1 eV. It has a cubic crystal structure with the space group Pm 3 m (space group no. 221) . Template: room group / 221

use

Barium stannate is used for the production of special ceramic insulations that require dielectric properties.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f Dale L. Perry: Handbook of Inorganic Compounds . CRC Press, 2016, ISBN 978-1-4398-1462-8 , pp. 487 ( limited preview in Google Book search).
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
↑ ^a ^b ^c Wensheng Lu, Helmut Schmidt: Hydrothermal synthesis of nanocrystalline BaSnO ₃ using a SnO ₂ -xH ₂ O sol. In: Journal of the European Ceramic Society. 25, 2005, p. 919, doi : 10.1016 / j.jeurceramsoc.2004.04.010 .
↑ Ku Ku Noor Dhaniah Muhsen, Rozana Aina Maulat Osman, Mohd Idris Sobri: Giant anomalous dielectric behavior of BaSnO ₃ at temperature high. In: Journal of Materials Science: Materials in Electronics. , doi : 10.1007 / s10854-019-01065-x .

[Dale_L._Perry-1] ↑ ^a ^b ^c ^d ^e ^f Dale L. Perry: Handbook of Inorganic Compounds . CRC Press, 2016, ISBN 978-1-4398-1462-8 , pp. 487 ( limited preview in Google Book search).

[NV-2] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[DOI10.1016/j.jeurceramsoc.2004.04.010-3] Wensheng Lu, Helmut Schmidt: Hydrothermal synthesis of nanocrystalline BaSnO ₃ using a SnO ₂ -xH ₂ O sol. In: Journal of the European Ceramic Society. 25, 2005, p. 919, doi : 10.1016 / j.jeurceramsoc.2004.04.010 .

[DOI10.1007/s10854-019-01065-x-4] Ku Ku Noor Dhaniah Muhsen, Rozana Aina Maulat Osman, Mohd Idris Sobri: Giant anomalous dielectric behavior of BaSnO ₃ at temperature high. In: Journal of Materials Science: Materials in Electronics. , doi : 10.1007 / s10854-019-01065-x .