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Boron (B)-Powder

  • 7440-42-8
  • B
  • 0500PD
  • 99%, 99.9%,99.99%.
  • -325 mesh.
  • 231-151-2
  • Class 4.1
  • UN3178
  • PG III
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Boron is a non-metallic element which occurs in several allotropes. It is rarely found in nature, normally occurring as borates or orthoboric acid (the abundance of boron in the earth's crust is 10 ppm, the principal ore being borax, Na₂B₄O₇.xH₂O). Amorphous boron is the more common allotrope and exists as a dark powder which is unreactive towards water, oxygen, acids and alkalis.


Properties:

Appearance:black-brown

Melting point:2349 K (2076 °C, 3769 °F)

Boiling point:4200 K (3927 °C, 7101 °F)

Density when liquid (at m.p.):2.08 g/cm3


Application

Mainly used in the production of borax, boric acid and boron compounds and the element boron, is metallurgy, building materials, machinery, electrical appliances, chemical industry, light wool, nuclear industry, medicine, agriculture and other important raw materials.



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