Cesium perchlorate

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Crystal structure
Unit cell of barium sulfate
__ Cs + __ Cl 7+ __ O 2−
Crystal system

orthorhombic

Space group

Pnma (No. 62)Template: room group / 62

Lattice parameters

a = 9.832 (1)  Å , b = 6.009 (1) Å, c = 7.764 (2) Å.

General
Surname Cesium perchlorate
other names

Perchloric acid cesium salt

Ratio formula CsClO 4
Brief description

white solid

External identifiers / databases
CAS number 13454-84-7
EC number 236-643-0
ECHA InfoCard 100.033.298
PubChem 123309
Wikidata Q3178745
properties
Molar mass 232.36 g mol −1
Physical state

firmly

density

3.327 g cm −3

Melting point

250 (decomposition) ° C

solubility

poorly soluble in water (2 g l −1 at 25 ° C)

safety instructions
GHS labeling of hazardous substances
03 - Oxidising

danger

H and P phrases H: 272
P: 220
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Cesium perchlorate is an inorganic chemical compound of cesium from the group of perchlorates .

Extraction and presentation

Cesium perchlorate can be obtained by thermal decomposition of cesium chlorate , the decomposition taking place in two parallel ways. Since cesium perchlorate is still stable at temperatures around the melting point of cesium chlorate, it accumulates together with cesium chloride during decomposition .

properties

Cesium perchlorate is a white solid that is poorly soluble in water. The compound crystallizes isostructurally to barium sulfate in the orthorhombic space group Pnma (space group no. 62) with the lattice constants a = 9.832 (1) Å, b = 6.009 (1) Å, c = 7.764 (2) Å. Template: room group / 62

solubility in water
Temperature (° C) 0 10 20th 30th 40 60 80 100
Solubility (g / 100 ml) 0.1 1.0 1.6 2.6 4.0 7.3 14.4 30.0

When heated, it begins to decompose from around 220 ° C, and at higher temperatures it completely decomposes to cesium chloride and oxygen.

use

Cesium perchlorate is used for special optical glasses.

It can also be used to make other chemical compounds such as chloroperchlorate .

Individual evidence

  1. a b J. Granzin: Refinement of the crystal structures of RbClO 4 and CsClO 4 . In: Journal of Crystallography . tape 184 , no. 1-4 , November 1988, pp. 157-160 , doi : 10.1524 / zkri.1988.184.14.157 .
  2. a b c d Dale L. Perry: Handbook of Inorganic Compounds, Second Edition . CRC Press, 2011, ISBN 978-1-4398-1462-8 , pp. 113 ( limited preview in Google Book search).
  3. a b c d data sheet Cesium perchlorate, 99.995% trace metals basis from Sigma-Aldrich , accessed on October 17, 2015 ( PDF ).
  4. a b Kurt H. Stern: High Temperature Properties and Thermal Decomposition of Inorganic Salts ... CRC Press, 2000, ISBN 1-4200-4234-3 , p. 195 ( limited preview in Google Book search).
  5. ^ JW Mullin: Crystallization . Butterworth-Heinemann, 2001, ISBN 978-0-08-053011-6 , pp. 484 ( limited preview in Google Book search).
  6. ^ Loran O'Bannon: Dictionary of Ceramic Science and Engineering . Springer Science & Business Media, 2012, ISBN 978-1-4613-2655-7 , pp. 56 ( limited preview in Google Book search).
  7. James E. House, Kathleen A. House: Descriptive Inorganic Chemistry . Academic Press, 2015, ISBN 978-0-12-802979-4 , pp. 280 ( limited preview in Google Book search).