Lanthanum oxalate is an inorganic compound, a salt of lanthanum metal and oxalic acid with the chemical formula La
2(C
2O
4)
3.[1][2]

Synthesis

Reaction of soluble lanthanum nitrate with an excess of oxalic acid:

Also, a reaction of lanthanum chloride with oxalic acid:

Physical properties

Lanthanum(III) oxalate forms colorless crystals that are poorly soluble in water.[3]

The compound forms various crystallohydrates La
2(C
2O
4)
3•nH
2O, where n = 1, 2, 3, 7, and 10.[4][5]

The crystallohydrates decompose when heated.[6]

References

  1. ^ Glasner, A.; Steinberg, M. (1 February 1961). "The thermal decomposition of lanthanum oxalate". Journal of Inorganic and Nuclear Chemistry. 16 (3): 279–287. doi:10.1016/0022-1902(61)80503-4. ISSN 0022-1902. Retrieved 17 March 2023.
  2. ^ "Lanthanum oxalate". National Institute of Standards and Technology. Retrieved 17 March 2023.
  3. ^ 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. Retrieved 17 March 2023.
  4. ^ "Lanthanum(III) oxalate hydrate". Sigma Aldrich. Retrieved 17 March 2023.
  5. ^ "Lanthanum Oxalate Hydrate". Retrieved 17 March 2023.
  6. ^ 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.