Trinickel boride

Last updated
Trinickel boride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.346 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 234-495-1
PubChem CID
  • InChI=1S/B.3Ni
    Key: QHFBXOYEDDRLIZ-UHFFFAOYSA-N
  • [B].[Ni].[Ni].[Ni]
Properties
Ni3B
Molar mass 186.89 g/mol
Hazards
GHS labelling:
GHS-pictogram-exclam.svg GHS-pictogram-silhouette.svg GHS-pictogram-pollu.svg
Danger
H317, H350i, H372, H410
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Trinickel boride is a compound of nickel and boron with chemical formula Ni
3B. It is one of the borides of nickel.

Contents

The compound was described in 1959 by R. Fruchart, [2] S. Rundquist, [3] and L. H. Anderson and R. Kiessling. [4] It is a hard solid with the cementite crystal structure. [5]

Synthesis

Trinickel boride can be obtained, as grains embedded in a nickel matrix, by heating Brown's P-1 and P-2 "nickel boride"catalyst to 250 °C. This catalyst is produced by reduction of nickel salts with sodium borohydride. [5]

Trinickel boride can be obtained also by compressing nickel and boron powders with explosives. [6]

Recently it has been found that Ni
3B can be formed (together with other nickel borides) by heating sodium borohydride with powdered nickel metal to 670 °C in a closed vessel, so that the released hydrogen creates a pressure of up to 3.4 MPa. The main reactions can be summarized as

2NaBH
4 ↔ 2NaH + B
2H
6
3Ni + 2B
2H
6 + NaH ↔ Ni
3B + 3BH
3 + 2H
2 + Na

but other reactions occur, yielding other borides. [7]

See also

References

  1. ↑ US National Institutes of Health (2020): "Nickel boride (Ni3B)". Compound page at the NCBI PubChem site. Accessed on 2020-07-18.
  2. ↑ R. Fruchart, Ann. Chim., 4, 1247 (1959).
  3. ↑ S. Rundquist, Acta Chem. Scand., 12, 658 (1959).
  4. ↑ L. H. Anderson and R. Kiessling, Acta Chem. Scand., 4, 160 (1950).
  5. 1 2 L. J. E. Hofer, J. F. Shultz, R. D. Panson, and R. B. Anderson (1964): "The nature of the nickel boride formed by the action of sodium borohydride on nickel salts". Inorganic Chemistry, volume 3, issue 12, pages 1783–1785. doi:10.1021/ic50022a031
  6. ↑ Michail A. Korchagin, Dina V. Dudina, Boris B. Bokhonov, Natalia V. Bulina, Arina V. Ukhina, and Igor S. Batraev (2018): "Synthesis of nickel boride by thermal explosion in ball-milled powder mixtures". Journal of Materials Science, volume 2018, issue 19. doi:10.1007/s10853-018-2290-8
  7. ↑ Mahboobeh Shahbazi, Henrietta Cathey, Natalia Danilova and Ian D.R. Mackinnon (2018): "Single Step Process for Crystalline Ni-B Compounds". Materials, volume 11, issue 7, article 1259-. doi: 10.3390/ma11071259
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