Cerium (III) oxalate

Structural formula
General
Surname	Cerium (III) oxalate
Molecular formula	Ce 2 (C 2 O 4 ) 3 ; Ce 2 (C 2 O 4 ) 3 • 9 H 2 O; Ce 2 (C 2 O 4 ) 3 • x H 2 O;
Brief description	white solid
External identifiers / databases
ECHA InfoCard	100,004,875
PubChem	8762
Wikidata	Q415480
Drug information
ATC code	A04 AD02
properties
Molar mass	544.29 g mol −1 ; 706.44 g mol −1 (nonahydrate);
Physical state	firmly
solubility	bad in water
safety instructions
	Please note the exemption from the labeling requirement for drugs, medical devices, cosmetics, food and animal feed
GHS labeling of hazardous substances Caution
H and P phrases	H: 302-312
	P: 280
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Cerium (III) oxalate is a compound of the rare earth metal cerium with oxalic acid . It is a white crystalline powder and is insoluble in water and organic solvents.

presentation

The representation succeeds by reacting oxalic acid with cerium (III) chloride ; the latter is prepared from cerium-containing flints and hydrochloric acid . The insoluble product is obtained as a crystalline precipitate .

{\ displaystyle \ mathrm {2 \ Ce ^ {\, 3 +} \ +3 \ H_ {2} C_ {2} O_ {4} + \ 9 \ H_ {2} O \ longrightarrow 2 \ Ce_ {2} ( C_ {2} O_ {4}) _ {3} \ {\ text {·}} \ {9} \ H_ {2} O \ downarrow + \ 6 \ H ^ {\, +}}}

Reactions

Cer (III) oxalate decomposes when heated from approx. 275 ° C to the cerium oxides cerium (III) oxide and cerium (IV) oxide .

Individual evidence

↑ ^a ^b Data sheet Cerium (III) oxalate nonahydrate (PDF) from Strem, accessed on December 25, 2012.
↑ ^a ^b data sheet cerium (III) oxalate from Sigma-Aldrich , accessed on November 1, 2016 ( PDF ).
^ S. El-Houte, M. El-Sayed Ali: Thermal decomposition of cerium oxalate and mixed cerium-gadolinium oxalates . In: Journal of Thermal Analysis . tape 37 , 1991, pp. 907-913 , doi : 10.1007 / BF01932788 .

[strem-1] Data sheet Cerium (III) oxalate nonahydrate (PDF) from Strem, accessed on December 25, 2012.

[ALDRICH-2] ta sheet cerium (III) oxalate from Sigma-Aldrich , accessed on November 1, 2016 ( PDF ).

[3] S. El-Houte, M. El-Sayed Ali: Thermal decomposition of cerium oxalate and mixed cerium-gadolinium oxalates . In: Journal of Thermal Analysis . tape 37 , 1991, pp. 907-913 , doi : 10.1007 / BF01932788 .