Zirconium silicate

Crystal structure
	__ Zr 4+ __ O 2− __ Si 4+
General
Surname	Zirconium silicate
other names	Zirconium orthosilicate; Zirconium (IV) silicate;
Ratio formula	ZrSiO 4
Brief description	light gray odorless solid
External identifiers / databases
EC number	233-252-7
ECHA InfoCard	100.030.216
PubChem	61775
ChemSpider	55663
Wikidata	Q2342917
properties
Molar mass	183.30 g mol −1
Physical state	firmly
density	4.56 g cm −3
Melting point	2550 ° C
solubility	practically insoluble in water, acids and alkalis
safety instructions
GHS labeling of hazardous substances	no GHS pictograms
	no GHS pictograms
H and P phrases	H: no H-phrases
	P: no P-phrases
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Zirconium silicate is an inorganic chemical compound of zirconium from the group of silicates .

Occurrence

Zirconium silicate occurs naturally in the form of the mineral zircon .

Extraction and presentation

Zirconium silicate can be obtained by reacting zirconium (IV) oxide and silicon dioxide in an electric arc.

properties

Zirconium silicate is a light gray odorless solid that is practically insoluble in water, acids and alkalis. It decomposes at temperatures above 1675 ° C into zirconium (IV) oxide and silicon dioxide, with silicon dioxide first being deposited in a metastable phase. It has a tetragonal crystal structure with the space group I 4 ₁ / amd (space group no. 141) . Template: room group / 141

use

Zirconium silicate is used in the manufacture of refractories for applications where corrosion resistance to alkalis is required. It is also used in the manufacture of some ceramics, enamels, and ceramic glazes. It is used as an opacifier in enamels and glazes and can also be found in some cements. Another use of zirconium silicate is dust for grinding and grinding. In the past, zirconium silicates were also used as pigments .

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ data sheet zirconium silicate at AlfaAesar, accessed on March 3, 2019 ( PDF )(JavaScript required) .
↑ Dale L. Perry: Handbook of Inorganic Compounds . CRC Press, 1995, ISBN 978-0-8493-8671-8 , pp. 9 ( limited preview in Google Book search).
↑ H. Scholze: Ceramic part 1: General principles and important properties . Springer-Verlag, 2013, ISBN 978-3-642-47491-0 , p. 136 ( limited preview in Google Book search).
↑ Mailadil T. Sebastian, Rick ubiC, Heli Jantunen: Microwave Materials and Applications . John Wiley & Sons, 2017, ISBN 978-1-119-20855-6 ( limited preview in Google Book Search).
^ Arno Kaiser, Markus Lobert, Rainer Telle: Thermal stability of zircon (ZrSiO4). In: Journal of the European Ceramic Society. 28, 2008, p. 2199, doi : 10.1016 / j.jeurceramsoc.2007.12.040 .

[Alfa-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ data sheet zirconium silicate at AlfaAesar, accessed on March 3, 2019 ( PDF )(JavaScript required) .

[Dale_L._Perry-2] Dale L. Perry: Handbook of Inorganic Compounds . CRC Press, 1995, ISBN 978-0-8493-8671-8 , pp. 9 ( limited preview in Google Book search).

[H._Scholze-3] H. Scholze: Ceramic part 1: General principles and important properties . Springer-Verlag, 2013, ISBN 978-3-642-47491-0 , p. 136 ( limited preview in Google Book search).

[Mailadil_T._Sebastian,_Rick_Ubic,_Heli_Jantunen-4] Mailadil T. Sebastian, Rick ubiC, Heli Jantunen: Microwave Materials and Applications . John Wiley & Sons, 2017, ISBN 978-1-119-20855-6 ( limited preview in Google Book Search).

[DOI10.1016/j.jeurceramsoc.2007.12.040-5] Arno Kaiser, Markus Lobert, Rainer Telle: Thermal stability of zircon (ZrSiO4). In: Journal of the European Ceramic Society. 28, 2008, p. 2199, doi : 10.1016 / j.jeurceramsoc.2007.12.040 .