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Lanthanum oxalate

From Wikipedia, the free encyclopedia
Lanthanum oxalate
Names
Other names
lanthanum(3+);oxalate, lanthanum sesquioxalate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.007.871Edit 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 mass541.87 g/mol
Appearancecolorless crystals
Densityg/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 theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

Lanthanum oxalate is aninorganic compound, a salt oflanthanum metal andoxalic acid with the chemical formulaLa
2(C
2O
4)
3.[1][2]

Synthesis

[edit]

Reaction of solublelanthanum nitrate with an excess ofoxalic acid:

2 La(NO3)3 + 3 (COOH)2 → La2(C2O4)3 + 6 HNO3

Also, a reaction oflanthanum chloride withoxalic acid:

2 LaCl3 + 3 H2C2O4 → La2(C2O4)3 + 6 HCl

Physical properties

[edit]

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

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

The crystallohydrates decompose when heated.[6]

References

[edit]
  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. Retrieved17 March 2023.
  2. ^"Lanthanum oxalate".National Institute of Standards and Technology. Retrieved17 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. Retrieved17 March 2023.
  4. ^"Lanthanum(III) oxalate hydrate".Sigma Aldrich. Retrieved17 March 2023.
  5. ^"Lanthanum Oxalate Hydrate". Retrieved17 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.
Lanthanum compounds
Compounds of theoxalate ion
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