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Lithium oxalate

From Wikipedia, the free encyclopedia
Lithium oxalate
Names
IUPAC name
Lithium oxalate
Other names
  • Dilithium oxalate
  • di-Lithium oxalate[1]
  • Oxalic acid dilithium salt[2]
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.008.232Edit this at Wikidata
EC Number
  • 209-054-1
UNII
  • 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
  • [Li+].[Li+].[O-]C(=O)C([O-])=O
Properties
Li2C2O4
Molar mass101.90 g·mol−1
AppearanceColorless crystalline solid
Density2.12 g/cm3
6.6 g per 100 g of water
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H302,H312
P264,P270,P280,P301+P312,P302+P352,P312,P322,P330,P363,P501
Related compounds
Related compounds
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

Lithium oxalate is anorganic compound with the chemical formulaLi2C2O4. It is a salt oflithium metal andoxalic acid.[3][4] It consists of lithiumcationsLi+ andoxalateanionsC2O2−4. Lithium oxalate is soluble in water and converts tolithium oxide when heated.[5]

Synthesis

[edit]

One of the methods of synthesis is the reaction of direct neutralization ofoxalic acid withlithium hydroxide:

2 LiOH + H2C2O4 → Li2C2O4 + 2 H2O

Properties

[edit]

The compound crystallizes in themonoclinic system,cell parametersa = 3.400Å,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):

Li2C2O4 → Li2CO3 + CO

Applications

[edit]

Inpyrotechnics, the compound is used tocolor the flame red.[6]

References

[edit]
  1. ^"553-91-3 | Sigma-Aldrich".Sigma Aldrich. Retrieved15 June 2021.
  2. ^"di-Lithium oxalate".Merck Millipore. Retrieved15 June 2021.
  3. ^abBeagley, B.; Small, R. W. H. (1964-06-10)."The structure of lithium oxalate".Acta Crystallographica.17 (6):783–788.Bibcode:1964AcCry..17..783B.doi:10.1107/S0365110X64002079. Retrieved15 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".Journal of the Electrochemical Society.165 (3):A512 –A524.doi:10.1149/2.0611803jes.S2CID 104199908.
  5. ^"Lithium Oxalate".Millipore-Sigma. Retrieved10 Feb 2022.
  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. Retrieved15 June 2021.
Compounds withnoble gases
Compounds withhalogens
Oxides andhydroxides
Compounds withchalcogens
Compounds withpnictogens
Compounds withgroup 14 elements
Compounds withgroup 13 elements
Compounds withtransition metals
Organic (soaps)
Other compounds
Minerals
Other Li-related
Compounds of theoxalate ion
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