Chemistry:Cerium(III) sulfate

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Cerium(III) sulfate
Cerium(III) sulfate
IUPAC name
Cerium(III) sulfate
Other names
Cerous sulfate
3D model (JSmol)
EC Number
  • 236-644-6, 246-392-9
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
Safety data sheet External MSDS
GHS pictograms GHS07: Harmful
GHS Signal word Warning
H315, H319, H335
P261, P264, P271, P280, P302+352, P304+340, P305+351+338, P312, P321, P332+313, P337+313, P362, P403+233, P405, P501
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, 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 (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.


  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