Sodium tantalate

from Wikipedia, the free encyclopedia
Crystal structure
No drawing available
General
Surname Sodium tantalate
other names
  • Sodium tantalum oxide
  • Sodium metatantalate
Ratio formula NaTaO 3
Brief description

white solid

External identifiers / databases
CAS number 12034-15-0
ECHA InfoCard 100,031,623
PubChem 166006
Wikidata Q63341315
properties
Molar mass 251.94 g mol −1
Physical state

firmly

density

7 g cm −3

safety instructions
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 .

Sodium tantalate is an inorganic chemical compound of sodium from the group of tantalates .

Extraction and presentation

Sodium tantalate can be obtained by reacting sodium hydroxide or sodium carbonate with tantalum (V) oxide at 1200 ° C.

properties

Sodium tantalate is a white solid. It has a perovskite crystal structure with the space group P 2 / m (space group no. 10) or space group Pcmn (space group no. 62, position 4) . Further crystal structures occur at higher temperatures. Template: room group / 10 Template: room group / 62.4

use

Sodium tantalate can be used as a photocatalyst . By reacting with lead (II) chloride , lead (II) tantalate can be obtained.

Individual evidence

  1. ^ A b Dale L. Perry: Handbook of Inorganic Compounds . CRC Press, 2016, ISBN 978-1-4398-1462-8 , pp. 385 ( limited preview in Google Book Search).
  2. R. Blachnik: Pocket book for chemists and physicists Volume 3: Elements, inorganic compounds and materials, minerals . Springer-Verlag, 2013, ISBN 978-3-642-58842-6 , pp. 628 ( limited preview in Google Book search).
  3. This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
  4. Toshiyuki Yokoi, Junya Sakuma et al. a .: Preparation of a colloidal array of NaTaO3 nanoparticles via a confined space synthesis route and its photocatalytic application. In: Physical Chemistry Chemical Physics. 13, 2011, p. 2563, doi : 10.1039 / C0CP02141E .
  5. a b Wan-Hsien Lin, Ching Cheng u. a .: NaTaO3 photocatalysts of different crystalline structures for water splitting into H2 and O2. In: Applied Physics Letters. 89, 2006, p. 211904, doi : 10.1063 / 1.2396930 .
  6. M. Ahtee, L. Unonius: The structure of NaTaO3 by X-ray powder diffraction. In: Acta Crystallographica Section A. 33, 1977, p. 150, doi : 10.1107 / S056773947700031x .
  7. HF Kay, JL Miles: The structure of cadmium titanate and sodium tantalate. In: Acta Crystallographica. 10, p. 213, doi : 10.1107 / S0365110X57000663 .
  8. Brendan J Kennedy, AK Prodjosantoso, Christopher J Howard: Powder neutron diffraction study of the high temperature phase transitions in NaTaO3. In: Journal of Physics: Condensed Matter. 11, 1999, p. 6319, doi : 10.1088 / 0953-8984 / 11/33/302 .
  9. Tobias Grewe, Harun Tüysüz: Amorphous and Crystalline Sodium Tantalate Composites for Photocatalytic Water Splitting. In: ACS Applied Materials & Interfaces. 7, 2015, p. 23153, doi : 10.1021 / acsami.5b06965 .
  10. Likun Pan, Guang Zhu: Perovskite Materials Synthesis, Characterization, Properties, and Applications . BoD - Books on Demand, 2016, ISBN 978-953-512-245-6 , pp. 495 ( limited preview in Google Book search).
  11. Jonathan Boltersdorf, Tricia Wong, Paul A. Maggard: Synthesis and Optical Properties of Ag (I), Pb (II), and Bi (III) Tantalate-Based Photocatalysts. In: ACS Catalysis. 3, 2013, p. 2943, doi : 10.1021 / cs400707x .