Zinc ferrite
Crystal structure | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
|||||||||||||
__ Fe 3+ / Zn 2+ __ O 2− | |||||||||||||
General | |||||||||||||
Surname | Zinc ferrite | ||||||||||||
other names |
Zinc iron oxide |
||||||||||||
Ratio formula | ZnFe 2 O 4 | ||||||||||||
Brief description |
red-brown solid |
||||||||||||
External identifiers / databases | |||||||||||||
|
|||||||||||||
properties | |||||||||||||
Molar mass | 241.08 g mol −1 | ||||||||||||
Physical state |
firmly |
||||||||||||
density |
5.395 g cm −3 |
||||||||||||
safety instructions | |||||||||||||
|
|||||||||||||
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Zinc ferrite is an inorganic chemical compound of zinc from the group of ferrites .
Occurrence
Zinc ferrite occurs naturally in the form of the mineral franklinite .
Extraction and presentation
Zinc ferrite can be obtained by reacting zinc oxide with iron (III) oxide at 1000 ° C.
Alternatively, it can be obtained by reacting a zinc chloride solution with sodium hydroxide and iron (III) chloride .
properties
Zinc ferrite is a red-brown solid. It has a crystal structure of spinel type.
use
Zinc ferrite is used as a pigment and as a gas sensor.
Individual evidence
- ↑ a b c d e data sheet Zinc iron oxide, nanopowder, <100 nm particle size (BET),> 99% trace metals basis from Sigma-Aldrich , accessed on April 21, 2014 ( PDF ).
- ↑ a b c d Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 1038.
- ↑ mindat.org: Franklinite: Franklinite mineral information and data. , accessed on Monday, April 21, 2014
- ^ Gunter Buxbaum: Industrial Inorganic Pigments . John Wiley & Sons, 2008, ISBN 3-527-61210-6 , pp. 206 ( limited preview in Google Book search).
- ^ Hao Feng, Gustavo Barbosa-Cánovas, Jochen Weiss: Ultrasound Technologies for Food and Bioprocessing - Hao Feng, Gustavo Barbosa-Cánovas, Jochen Weiss . Springer, 2010, ISBN 1-4419-7472-5 , pp. 421 ( limited preview in Google Book search).