Chemistry:Lanthanum oxalate
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| Other names
lanthanum(3+);oxalate, lanthanum sesquioxalate
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3D model (JSmol)
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CompTox Dashboard (EPA)
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| Properties | |
| C6La2O12 | |
| Molar mass | 541.87 g/mol |
| Appearance | colorless crystals |
| Density | g/cm3 |
| poorly soluble | |
| Related compounds | |
Related compounds
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Calcium oxalate Sodium oxalate Magnesium oxalate Strontium oxalate Barium oxalate Potassium oxalate Beryllium 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):
Lanthanum oxalate is an inorganic compound, a salt of lanthanum metal and oxalic acid with the chemical formula La2(C2O4)3.[1][2]
Synthesis
Reaction of soluble lanthanum nitrate with an excess of oxalic acid:
- [math]\ce{ 2La(NO3)3 + 3(COOH)2 -> La2(C2O4)3 + 6HNO3 }[/math]
Also, a reaction of lanthanum chloride with oxalic acid:
- [math]\ce{ 2LaCl3 + 3H2C2O4 -> La2(C2O4)3 + 6HCl }[/math]
Physical properties
Lanthanum(III) oxalate forms colorless crystals that are poorly soluble in water.[3]
The compound forms various crystallohydrates La2(C2O4)3•nH2O, where n = 1, 2, 3, 7, and 10.[4][5]
The crystallohydrates decompose when heated.[6]
References
- ↑ Glasner, A.; Steinberg, M. (1 February 1961). "The thermal decomposition of lanthanum oxalate" (in en). Journal of Inorganic and Nuclear Chemistry 16 (3): 279–287. doi:10.1016/0022-1902(61)80503-4. ISSN 0022-1902. https://www.sciencedirect.com/science/article/abs/pii/0022190261805034. Retrieved 17 March 2023.
- ↑ "Lanthanum oxalate" (in en). National Institute of Standards and Technology. https://webbook.nist.gov/cgi/cbook.cgi?ID=B6000080&Units=SI.
- ↑ Kolthoff, I. M.; Elmquist, Ruth. (April 1931). "THE SOLUBILITIES OF LANTHANUM OXALATE AND OF LANTHANUM HYDROXIDE IN WATER. THE MOBILITY OF THE LANTHANUM ION AT 25°". Journal of the American Chemical Society 53 (4): 1217–1225. doi:10.1021/ja01355a004. https://pubs.acs.org/doi/abs/10.1021/ja01355a004. Retrieved 17 March 2023.
- ↑ "Lanthanum(III) oxalate hydrate". Sigma Aldrich. https://www.sigmaaldrich.com/RU/en/product/aldrich/461024.
- ↑ "Lanthanum Oxalate Hydrate" (in en). https://www.americanelements.com/lanthanum-oxalate-hydrate-312696-10-9.
- ↑ Purwani, M V; Suyanti, Suyanti; Adi, Wisnu Ari (31 January 2019). "THERMAL DECOMPOSITION KINETICS OF LANTHANUM OXALATE HYDRATE PRODUCT TREATMENT FROM MONAZITE". Jurnal Sains Materi Indonesia 20 (2): 50. doi:10.17146/jsmi.2019.20.2.5295.
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