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Lanthanum oxalate

(Redirected from Lanthanum(III) oxalate)

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]

Lanthanum oxalate
Names
Other names
lanthanum(3+);oxalate, lanthanum sesquioxalate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.007.871 Edit this at Wikidata
EC Number
  • 208-656-1
  • InChI=1S/3C2H2O4.2La/c3*3-1(4)2(5)6;;/h3*(H,3,4)(H,5,6);;/q;;;2*+3/p-6
    Key: OXHNIMPTBAKYRS-UHFFFAOYSA-H
  • C(=O)(C(=O)[O-])[O-].C(=O)(C(=O)[O-])[O-].C(=O)(C(=O)[O-])[O-].[La+3].[La+3]
Properties
C
6La
2O
12
Molar mass 541.87 g/mol
Appearance colorless crystals
Density g/cm3
poorly soluble
Related compounds
Related compounds
 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).

Synthesis

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

 

Also, a reaction of lanthanum chloride with oxalic acid:

 

Physical properties

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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

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  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.
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