Lanthanum oxalate

Names
Other names

lanthanum(3+);oxalate, lanthanum sesquioxalate

Identifiers

CAS Number

* 537-03-1 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 144342

EC Number |

* 208-656-1

PubChem CID

* 164654

CompTox Dashboard (EPA)

* 30927256

InChI

* 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

SMILES

* C(=O)(C(=O)[O-])[O-].C(=O)(C(=O)[O-])[O-].C(=O)(C(=O)[O-])[O-].[La+3].[La+3]

Properties

Chemical formula

| C6La2O12
Molar mass | 541.87 g/mol
Appearance  | colorless crystals
Density | g/cm3

Solubility in water

| poorly soluble
Hazards
GHS pictograms |
GHS Signal word | Warning

GHS hazard statements

| HH302Script error: No such module "Preview warning".Category:GHS errors, HH312Script error: No such module "Preview warning".Category:GHS errors, HH317Script error: No such module "Preview warning".Category:GHS errors, HH411Script error: No such module "Preview warning".Category:GHS errors

GHS precautionary statements

| PP261Script error: No such module "Preview warning".Category:GHS errors, PP264Script error: No such module "Preview warning".Category:GHS errors, PP270Script error: No such module "Preview warning".Category:GHS errors, PP272Script error: No such module "Preview warning".Category:GHS errors, PP273Script error: No such module "Preview warning".Category:GHS errors, PP280Script error: No such module "Preview warning".Category:GHS errors, PP301+P317Script error: No such module "Preview warning".Category:GHS errors, PP302+P352Script error: No such module "Preview warning".Category:GHS errors, PP317Script error: No such module "Preview warning".Category:GHS errors, PP321Script error: No such module "Preview warning".Category:GHS errors, PP330Script error: No such module "Preview warning".Category:GHS errors, PP333+P317Script error: No such module "Preview warning".Category:GHS errors, PP362+P364Script error: No such module "Preview warning".Category:GHS errors, PP391Script error: No such module "Preview warning".Category:GHS errors, PP501Script error: No such module "Preview warning".Category:GHS errors
Related compounds

Other cations

* Cerium(III) oxalate
* Europium(III) oxalate
* Gadolinium(III) oxalate
* Holmium(III) oxalate
* Neodymium(III) oxalate
* Praseodymium(III) oxalate
* Promethium(III) oxalate
* Samarium(III) oxalate
* Terbium(III) oxalate
* Thulium(III) oxalate
* Ytterbium(III) oxalate

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Tracking categories (test):

* SizeSet

Lanthanum oxalate is an inorganic compound, a salt of lanthanum metal and oxalic acid with the chemical formula La2(C2O4)3.[1][2]

## Contents

* 1 Synthesis
* 2 Physical properties
* 3 References

## Synthesis

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

2 La(NO

3 \+ 3 (COOH)
2 → La
2(C

3 \+ 6 HNO

Also, a reaction of lanthanum chloride with oxalic acid:

2 LaCl
3 \+ 3 H

4 → La
2(C

3 \+ 6 HCl

## 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

1. ↑ 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.
2. ↑ "Lanthanum oxalate" (in en). National Institute of Standards and Technology. https://webbook.nist.gov/cgi/cbook.cgi?ID=B6000080&Units=SI.
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. https://pubs.acs.org/doi/abs/10.1021/ja01355a004. Retrieved 17 March 2023.
4. ↑ "Lanthanum(III) oxalate hydrate". Sigma Aldrich. https://www.sigmaaldrich.com/RU/en/product/aldrich/461024.
5. ↑ "Lanthanum Oxalate Hydrate" (in en). https://www.americanelements.com/lanthanum-oxalate-hydrate-312696-10-9.
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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* t
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Lanthanum compounds

* LaB6
* LaBr3
* LaC2
* LaCl3
* La2(CO3)3
* LaH10
* LaF3
* La2O3
* La(OH)3

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Oxalates

* (NH4)2C2O4
* BaC2O4
* CaC2O4
* Ce2(C2O4)3
* CrC2O4
* CoC2O4
* CuC2O4
* FeC2O4
* Fe2(C2O4)3
* PbC2O4
* MgC2O4
* Ag2C2O4
* Na2C2O4
* SrC2O4
* Th(C2O4)2

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