Strontium hexaboride

Strontiumhexaborid

Black, odorless solid

Fixed

3.39 g · cm -3

2235 ° C

Insoluble in water

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Strontiumborid is a dark red to black appearing at room temperature, crystalline compound of the elements strontium and boron, it is a very stable compound with a melting point of 2235 ° C, which is even able to scratch quartz.

Representation

Strontiumborid can result from the reaction of strontium carbonate with the boron carbide and elemental carbon in a vacuum oven.

Alternatively, it can be obtained by synthesis of strontium borate, aluminum and carbon present in an electric furnace.

Properties

The compound is non-toxic, irritant, however, which is why contact with eyes, skin and respiratory organs should be avoided.

Strontiumborid shows a weak ferromagnetism at low temperatures as some other alkaline earth metals. Sources are in this case so far been no unified theory, which is why there are two common. A guess is that impurities or abnormalities are responsible in the crystal structure.

Also, the material at low temperatures to semiconductor properties.

Use

Strontiumborid is used as an insulator and as a material for control rods.