Beryllium oxalate

Beryllium oxalate

Identifiers
CAS Number	3173-18-0 Y
3D model ( JSmol )	Interactive image
ChemSpider	4953986
PubChem CID	6451522
CompTox Dashboard (EPA)	DTXSID60185620
InChI InChI=1S/C2H2O4.Be/c3-1(4)2(5)6;/h(H,3,4)(H,5,6);/q;+2/p-2 Key: XQZGLPVUHKSNBQ-UHFFFAOYSA-L
SMILES [Be+2].C(=O)(C(=O)[O-])[O-]
Properties
Chemical formula	C 2BeO 4
Molar mass	97.03[1]
Appearance	Transparent crystals
Boiling point	365.1 °C (689.2 °F; 638.2 K)
Solubility in water	Soluble
Hazards
Flash point	188.8[2] °C (371.8 °F; 461.9 K)
Related compounds
Related compounds	Praseodymium oxalate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Beryllium oxalate is an inorganic compound, a salt of beryllium metal and oxalic acid with the chemical formula C
₂BeO
₄.^[3] It forms colorless crystals, dissolves in water, and also forms crystalline hydrates. The compound is used to prepare ultra-pure beryllium oxide^[4] by thermal decomposition.^[5]

Synthesis

The action of oxalic acid on beryllium hydroxide:^[6]

${\displaystyle {\mathsf {Be(OH)_{2}+H_{2}C_{2}O_{4}\ {\xrightarrow {}}\ BeC_{2}O_{4}+2H_{2}O}}}$

Chemical properties

Crystalline hydrates lose water when heated:

${\displaystyle {\mathsf {BeC_{2}O_{4}\cdot 3H_{2}O\ {\xrightarrow[{-2H_{2}O}]{100^{o}C}}\ BeC_{2}O_{4}\cdot H_{2}O\ {\xrightarrow[{-H_{2}O}]{220^{o}C}}\ BeC_{2}O_{4}}}}$

References