Lithium oxalate

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 2C 2O 4
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

Lithium oxalate is an organic compound with the chemical formula Li
2C
2O
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]

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

2 LiOH + H
2C
2O
4 → Li
2C
2O
4 + 2 H
2O

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):

Li
2C
2O
4 → Li
2CO
3 + CO

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

0.00 (0 votes) Original source: https://en.wikipedia.org/wiki/Lithium oxalate. Read more