Calcium titanate

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Crystal structure
Crystal structure of calcium titanate
General
Surname Calcium titanate
other names

Calcium titanium oxide (perovskite)

Ratio formula CaTiO 3
External identifiers / databases
CAS number 12049-50-2
EC number 234-988-1
ECHA InfoCard 100,031,795
PubChem 16212381
Wikidata Q4346070
properties
Molar mass 135.94 g mol −1
Physical state

firmly

density

4.1 g cm −3 (25 ° C)

Melting point

1975 ° C

safety instructions
GHS labeling of hazardous substances
no GHS pictograms
H and P phrases H: no H-phrases
P: no P-phrases
Toxicological data

> 12 g kg −1 ( LD 50ratoral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Calcium titanate is an inorganic chemical compound of calcium from the group of titanates .

Occurrence

Calcium titanate occurs naturally in the form of the mineral perovskite .

Extraction and presentation

Calcium titanate can be obtained by reacting calcium oxide with titanium (IV) oxide at 1350 ° C.

properties

Calcium titanate is a solid. It crystallizes monoclinically - pseudocubically .

use

Calcium titanate is used as a dielectric in ceramic capacitors (also as a mixed ceramic with barium titanate ) and as a coating material for implants.

Individual evidence

  1. a b c d e f data sheet Calcium titanate, nanopowder, <100 nm particle size (BET), 99% trace metals basis from Sigma-Aldrich , accessed on December 6, 2015 ( PDF ).
  2. Data sheet Calcium titanium oxide, 99 +% (metals basis) from AlfaAesar, accessed on December 6, 2015 ( PDF )(JavaScript required) .
  3. ^ Dale L. Perry: Handbook of Inorganic Compounds, Second Edition . CRC Press, 2011, ISBN 978-1-4398-1462-8 , pp. 99 ( limited preview in Google Book search).
  4. Alfred Hecht: Electro-ceramic materials, production, testing, applications . Springer-Verlag, 2013, ISBN 978-3-642-52724-1 , pp. 17 ( limited preview in Google Book search).
  5. ^ Siegfried Behrendt, Ralf Pfitzner, Rolf Kreibich, Kurt Hornschild: Innovations for Sustainability Ecological Aspects of Information and Communication Technologies . Springer-Verlag, 2013, ISBN 978-3-642-58892-1 , pp. 296 ( limited preview in Google Book search).
  6. Hubert Gräfen, VDI-Gesellschaft Werkstofftechnik: Lexikon Werkstofftechnik, corrected reprint . Springer-Verlag, 2013, ISBN 978-3-642-51732-7 , pp. 293 ( limited preview in Google Book search).
  7. Anke Bernstein, Georg Berger, Jörg Brandt, Ralph Wenkel, nate Gildenhaar, Thorsten Zielezinski, Doreen Nöbel: Calcium titanate (Ca4Ti3O10) - a new material for implant coatings. In: BIO materials. 5, 2004, doi : 10.1515 / BIOMAT.2004.5.4.242 .