Cerium oxalate

Cerium oxalate

File:Cerium oxalate.svg
File:Cerium oxalate.jpg
Names
IUPAC name Cerium(III) oxalate
Other names Cerium oxalate Cerous oxalate
Identifiers
CAS Number	139-42-4 checkY
3D model (JSmol)	Interactive image
ChemSpider	145101
ECHA InfoCard
E number
PubChem CID	165565
UNII	96P72VE680 checkY
CompTox Dashboard (EPA)	{{#property:P3117}}
InChI InChI=1S/3C2H2O4.2Ce/c3*3-1(4)2(5)6;;/h3*(H,3,4)(H,5,6);;/q;;;2*+3/p-6 Key: ZMZNLKYXLARXFY-UHFFFAOYSA-H
SMILES C(=O)(C(=O)[O-])[O-].C(=O)(C(=O)[O-])[O-].C(=O)(C(=O)[O-])[O-].[Ce+3].[Ce+3]
Properties
Chemical formula	C6Ce2O12
Molar mass	544.286 g·mol−1
Appearance	White crystals
Melting point	Decomposes
Solubility in water	Slightly soluble
Pharmacology
ATC code	A04AD02 (WHO)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Corrosive, Irritant, Respiratory irritant, Toxic
GHS labelling:
Pictograms	GHS05: CorrosiveGHS06: ToxicGHS08: Health hazard
Signal word	Danger
Hazard statements	H301, H311, H314, H319, H331, H335, H370
Precautionary statements	P260, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P305+P351+P338, P308+P313, P332+P313, P403+P233
NFPA 704 (fire diamond)	3 0 1
Flash point	188.8 °C
Safety data sheet (SDS)	External SDS
Related compounds
Other cations	Europium(III) oxalate Gadolinium(III) oxalate Holmium(III) oxalate Lanthanum(III) oxalate Neodymium(III) oxalate Praseodymium(III) oxalate Promethium(III) oxalate Samarium(III) oxalate Terbium(III) oxalate Thulium(III) oxalate Ytterbium(III) oxalate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). checkY verify (what is checkY☒N ?) Infobox references

Cerium(III) oxalate (cerous oxalate) is the inorganic cerium salt of oxalic acid. It is a white crystalline solid with the chemical formula of Ce₂(C₂O₄)₃. It can be obtained by the reaction of oxalic acid with cerium(III) chloride.

Uses

Cerium(III) oxalate is used as an antiemetic. It has been identified as part of the invisible ink that was used by Stasi operatives during the Cold War.

Toxicity

Cerium(III) oxalate irritates skin and mucous membranes, and is a strong irritant to eyes. If it gets into the eyes, there is a danger of severe eye injury.

Cerium salts increase the blood coagulation rate, and exposure to cerium salts can cause sensitivity to heat.

Oxalates are corrosive to tissue and are powerful irritants. They have a caustic effect on the linings of the digestive tracts and can cause kidney damage.