Chemistry:Beryllium oxalate
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| Properties | |
| C2BeO4 | |
| Molar mass | 97.03[1] |
| Appearance | Transparent crystals |
| Boiling point | 365.1 °C (689.2 °F; 638.2 K) |
| Soluble | |
| Hazards | |
| Flash point | 188.8[2] °C (371.8 °F; 461.9 K) |
| Related compounds | |
Related compounds
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Calcium oxalate Sodium oxalate Magnesium oxalate Strontium oxalate Barium oxalate Iron(II) oxalate Iron(III) oxalate Lithium oxalate Praseodymium oxalate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Tracking categories (test):
Beryllium oxalate is an inorganic compound, a salt of beryllium metal and oxalic acid with the chemical formula C2BeO4.[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]
- [math]\displaystyle{ \mathsf{Be(OH)_2 + H_2C_2O_4 \ \xrightarrow{}\ BeC_2O_4 + 2H_2O } }[/math]
Chemical properties
Crystalline hydrates lose water when heated:
- [math]\displaystyle{ \mathsf{BeC_2O_4\cdot 3H_2O \ \xrightarrow[-2H_2O]{100^oC}\ BeC_2O_4\cdot H_2O \ \xrightarrow[-H_2O]{220^oC}\ BeC_2O_4} }[/math]
References
- ↑ "BERYLLIUM OXALATE". chemicalbook.com. https://www.chemicalbook.com/ChemicalProductProperty_EN_CB2393953.htm.
- ↑ "beryllium,oxalate" (in en). chemsrc.com. https://www.chemsrc.com/en/cas/3173-18-0_429704.html.
- ↑ Novoselova, Aleksandra Vasilʹevna; Bat︠s︡anova, Li︠u︡dmila Rafailovna (1969) (in en). Analytical Chemistry of Beryllium. Ann Arbor-Humphrey Science Publishers. p. 25. https://books.google.com/books?id=2mBNAAAAMAAJ&q=beryllium+oxalate. Retrieved 15 June 2021.
- ↑ Dollimore, David; Konieczay, Julie L. (1998-09-07). "The thermal decomposition of beryllium oxalate and related materials" (in en). Thermochimica Acta 318 (1–2): 155–163. doi:10.1016/S0040-6031(98)00340-2. https://www.sciencedirect.com/science/article/abs/pii/S0040603198003402. Retrieved 15 June 2021.
- ↑ Walsh, Kenneth A. (2009-01-01) (in en). Beryllium Chemistry and Processing. ASM International. p. 125. ISBN 978-0-87170-721-5. https://books.google.com/books?id=3-GbhmSfyeYC&dq=beryllium+oxalate&pg=PA125. Retrieved 15 June 2021.
- ↑ Moore, Raymond E. (1960) (in en). Purification of Beryllium Compounds: A Literature Survey. Oak Ridge National Laboratory. p. 6. https://books.google.com/books?id=kR34mCmtPw0C&q=beryllium+oxalate. Retrieved 15 June 2021.
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