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Pentaniobium triarsenide

Pentaniobium triarsenide is a binary inorganic compound of niobium and arsenic with the formula Nb 5 As 3 , crystals, not soluble in water.

Pentaniobium triarsenide
Are common
Systematic
name
Pentaniobium triarsenide
Traditional namesArsenic niobium
Chem. formulaNb 5 As 3
Physical properties
conditioncrystals
Molar mass689.30 g / mol
Density8.4 g / cm³

Content

Getting

  • Sintering stoichiometric amounts of powdered niobium and arsenic:
fiveNb+3As→1700oCNbfiveAs3{\ displaystyle {\ mathsf {5Nb + 3As \ {\ xrightarrow {1700 ^ {o} C}} \ Nb_ {5} As_ {3}}}  

Physical Properties

Pentaniobium triarsenide forms orthorhombic crystals, space group P nma , cell parameters a = 2.60701 nm, b = 0.35198 nm, c = 1.17869 nm, Z = 8 [1] [2] .

Not soluble in water.

Notes

  1. ↑ S. Laohavanich, S. Thanomkul, S. Pramatus. Structure refinement of niobium arsenide Nb 5 As 3 // Acta Crystallographica Section B. - 1981. - T. B37 , No. 1 . - p . 227-228 . - DOI : 10.1107 / S0567740881002586 .
  2. ↑ S. Laohavanich, S. Thanomkul, S. Pramatus. Structure refinement of niobium arsenide Nb 5 As 3 . Erratum // Acta Crystallographica Section B. - 1982. - T. B38 , No. 4 . - p . 1398 . - DOI : 10.1107 / S0567740882005962 .

Literature

  • State diagrams of double metal systems / Ed. N. P. Lyakishev. - M .: Mashinostroenie, 1996. - T. 1. - 992 p. - ISBN 5-217-02688-X .


Source - https://ru.wikipedia.org/w/index.php?title=Triarsenid_pentanyobiya&oldid=91199755


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