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Chemical compound
Manganese oxalate is a chemical compound, a salt of manganese and oxalic acid with the chemical formula MnC2O4. The compound creates light pink crystals, does not dissolve in water, and forms crystalline hydrates. It occurs naturally as the mineral Lindbergite.
Synthesis.
Exchange reaction between sodium oxalate and manganese chloride:
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Physical properties.
Manganese oxalate forms light pink crystals.
It does not dissolve in water, p Ksp= 6.8.
Forms crystalline hydrates of the composition MnC2O4•"n" H2O, where n = 2 and 3.
Crystalline hydrate of the composition MnC2O4•2H2O forms light pink crystals of the orthorhombic system, space group "P"212121, cell parameters a = 0.6262 nm, b = 1.3585 nm, c = 0.6091 nm, Z = 4, melts in its own crystallization water at 100°C.
Chemical properties.
Decomposes on heating:
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References.
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