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.

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