Lithium oxalate

Names
IUPAC name

Lithium oxalate

Other names

* Dilithium oxalate
* di-Lithium oxalate[1]
* Oxalic acid dilithium salt[2]

Identifiers

CAS Number

* 553-91-3 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 61669

EC Number |

* 209-054-1

PubChem CID

* 68383

UNII |

* K737OT0E73 N

InChI

* InChI=1S/C2H2O4-C.2Li/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2

Key: YNQRWVCLAIUHHI-UHFFFAOYSA-L

SMILES

* [Li+].[Li+].[O-]C(=O)C([O-])=O

Properties

Chemical formula

| Li

Molar mass | 101.90 g·mol−1
Appearance  | Colorless crystalline solid
Density | 2.12 g/cm3

Solubility in water

| 6.6 g per 100 g of water
Hazards
GHS pictograms |
GHS Signal word | WARNING

GHS hazard statements

| H302, H312

GHS precautionary statements

| P264, P270, P280, P301+312, P302+352, P312, P322, P330, P363, P501
Related compounds

Related compounds

* Sodium oxalate
* Potassium oxalate
* Beryllium oxalate
* Magnesium oxalate
* Calcium oxalate
* Strontium oxalate
* Barium 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

Lithium oxalate is an organic compound with the chemical formula Li

4. It is a salt of lithium metal and oxalic acid.[3][4] It consists of lithium cations Li+
and oxalate anions C
2O2−
4. Lithium oxalate is soluble in water and converts to lithium oxide when heated.[5]

## Contents

* 1 Synthesis
* 2 Properties
* 3 Applications
* 4 References

## Synthesis

One of the methods of synthesis is the reaction of direct neutralization of oxalic acid with lithium hydroxide:

2 LiOH + H

4 → Li

4 \+ 2 H

## Properties

The compound crystallizes in the monoclinic system, cell parameters a = 3.400 Å, b = 5.156 Å, c = 9.055 Å, β = 95.60°, Z = 4.[3]

Lithium oxalate decomposes when heated at 410–500 °C (770–932 °F; 683–773 K):

4 → Li
2CO
3 \+ CO

## Applications

In pyrotechnics, the compound is used to color the flame red.[6]

## References

1. ↑ "553-91-3 | Sigma-Aldrich". Sigma Aldrich. https://www.sigmaaldrich.com/RU/ru/search/553-91-3?focus=products&page=1&perPage=30&sort=relevance&term=553-91-3&type=cas_number.
2. ↑ "di-Lithium oxalate". Merck Millipore. https://www.merckmillipore.com/RU/ru/product/di-Lithium-oxalate,MDA_CHEM-822085?ReferrerURL=https://www.google.ru/.
3. ↑ 3.0 3.1 Beagley, B.; Small, R. W. H. (1964-06-10). "The structure of lithium oxalate" (in en). Acta Crystallographica 17 (6): 783–788. doi:10.1107/S0365110X64002079. https://scripts.iucr.org/cgi-bin/paper?a04249. Retrieved 15 June 2021.
4. ↑ Solchenbach, Sophie; Wetjen, Morten; Pritzl, Daniel; Schwenke, K. Uta; Gasteiger, Hubert A. (2018). "Lithium Oxalate as Capacity and Cycle-Life Enhancer in LNMO/Graphite and LNMO/SiG Full Cells" (in en). Journal of the Electrochemical Society 165 (3): A512–A524. doi:10.1149/2.0611803jes. https://iopscience.iop.org/article/10.1149/2.0611803jes. Retrieved 15 June 2021.
5. ↑ "Lithium Oxalate" (in en). Millipore-Sigma. https://www.emdmillipore.com/CA/en/product/di-Lithium-oxalate,MDA_CHEM-822085.
6. ↑ Koch, Ernst-Christian (2009). "Is it possible to Obtain a Deep Red Pyrotechnic Flame Based on Lithium?". 36th International Pyrotechnics Seminar. doi:10.13140/2.1.1657.0567. https://www.researchgate.net/publication/268211790. Retrieved 15 June 2021.

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Lithium compounds

Inorganic|

* LiAlCl4
* LiAlH4
* LiAlO2
* LiBF4
* LiBH4
* LiBO2
* LiB3O5
* Li2B4O7
* LiBr
* Li2CO3
* Li2C2
* LiCl
* LiClO
* LiClO3
* LiClO4
* LiCoO2
* LiF
* LiH
* LiI
* LiIO3
* Li2IrO3
* Li2MoO4
* LiNH2
* Li2NH
* LiN3
* Li3N
* LiNO2
* LiNO3
* LiNbO3
* LiOH
* LiO2
* Li2O
* Li2O2
* LiPF6
* Li2PtO3
* Li2Po
* Li2RuO3
* Li2S
* Li2SO3
* Li2SO4
* Li3H(CO3)2
* Li2SiO3
* LiTaO3
* Li2TiO3

Organic|

* 12-hydroxystearate
* acetate
* aspartate
* citrate
* diisopropylamide
* orotate
* succinate
* stearate
* organolithiums

Minerals|

* Amblygonite
* Elbaite
* Eucryptite
* Jadarite
* Lepidolite
* Lithiophilite
* Petalite
* Pezzottaite
* Saliotite
* Spodumene
* Sugilite
* Tourmaline
* Zabuyelite
* Zinnwaldite

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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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