Cerium(III) sulfate, also called cerous sulfate, is an inorganic compound with the formula Ce2(SO4)3. It is one of the few salts whose solubility in water decreases with rising temperature. [1]

Cerium(III) sulfate
Cerium(III) sulfate
Names
IUPAC name
Cerium(III) sulfate
Other names
Cerous sulfate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.299 Edit this at Wikidata
EC Number
  • 236-644-6, 246-392-9
UNII
  • InChI=1S/2Ce.3H2O4S/c;;3*1-5(2,3)4/h;;3*(H2,1,2,3,4)/q2*+3;;;/p-6
    Key: OZECDDHOAMNMQI-UHFFFAOYSA-H
  • [O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Ce+3].[Ce+3]
Properties
Ce2(SO4)3
Molar mass 568.42 g/mol (anhydrous)
Appearance White to off white solid (anhydrous)
Density 2.886 g/mL at (25 °C)
Melting point 920 °C (1,690 °F; 1,190 K) (decomposes)
Boiling point NA
9.25 g/100 mL (20 °C) Hygroscopic
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319, H335
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Safety data sheet (SDS) External MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Cerium(III) sulfate (anhydrous) is a hygroscopic white solid, which begins to decompose above 600°C. It has a monoclinic crystal structure.

Cerium(III) sulfate tetrahydrate is a white solid that releases its water of crystallisation at 220 °C. It has (like the white octahydrate) a monoclinic crystal structure with the space group P21/c (space group 14). The nonahydrate has a hexagonal crystal structure with the space group P63/m (space group 176). Hydrates of this compound are known with 12, 9, 8, 5, 4 and 2 parts of water of crystallisation.

References edit

  1. ^ Daniel L. Reger; Scott R. Goode; David Warren Ball (2 January 2009). Chemistry: Principles and Practice. Cengage Learning. p. 482. ISBN 978-0-534-42012-3. Retrieved 23 March 2013.

See also edit