Samarium(III) chloride
Hexagonal
Sm, Cl
Samariumtrichlorid
White to yellowish hygroscopic powder
Fixed
- 4.46 g · cm -3
- 2.383 g · cm -3 ( hexahydrate)
686 ° C
Soluble in water
Attention
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Samarium ( III) chloride is a chemical compound selected from the group of chlorides.
Production and representation
Samarium ( III) chloride can be recovered as a solution by reaction of samarium or samarium (III ) carbonate with hydrochloric acid. In reaction with hydrogen chloride anhydrous form.
It can also be synthesized directly from the elements.
Properties
Samarium ( III) chloride is a white to yellowish hygroscopic powder. It has a hexagonal crystal structure with space group P63 / m. The hexahydrate forms topaz yellow panels and has a monoclinic crystal structure with space group P2 / n At 110 ° C there from crystal water.
Use
Samarium ( III) chloride is widely used as a starting material for the preparation of pure samarium by electrolysis of a molten mixture with sodium chloride and calcium chloride. It can also be used in organic chemistry, for example, for cyclization.