Nonstoichiometry, Chemistry

 

Whereas a pure molecular species has a definite stoichiometry, this is not often true for solids. Defects in crystals will include vacancies (atoms missing from their expected sites) and interstitials (extra atoms in sites normally open in the unit cell). An imbalance of defects involving different elements shall introduce nonstoichiometry. This is common in compounds of transition metals, where variable oxidation states are found. As describe, the sodium tungsten bronzes are formulated as NaxWO3, where x can have any value in the range 0-0.9.

 

487_Untitled.png

 

Fig. 1. Alternative views of the CsCl structure


 

Posted Date: 7/23/2012 12:39:42 AM | Location : United States







Related Discussions:- Nonstoichiometry, Assignment Help, Ask Question on Nonstoichiometry, Get Answer, Expert's Help, Nonstoichiometry Discussions

Write discussion on Nonstoichiometry
Your posts are moderated
Related Questions

the increasing order(lower first) for the values of e/m (charge/mass) for e,p,n,a?

Consider the ground state of(Z= 24)  . The numbers of electrons with the azimuthal quantum numbers,l=1   and 2 are, respectively: (1) 16 and 4          (2) 12 and 5

Heat Conductivity When considering the design of houses, the heat conductivity by walls, roofs, and the floor plays an significant role. The heat conductivities (λ) of some bui

what is silver silver electrode

A solution contains an unknown amount of osmium at the µg/g level, or below. Chemically pure osmium (Os) may be separated from the solution, but the chemical yields are variable an

which one will be chosen as cathode, Ag/Ag+ or Ag/Agi/i

The fresh feed to an ammonia production process contains nitrogen (N2) and hydrogen (H2) in stoichiometric proportion, along with an inert gas (I). The feed is combined with a re

what is theory of indicators?

What are dextrorotary compounds and Levi rotary compounds? Ans) Compounds that rotate the plane polarized light to the right are known as Dextro rotatory compounds and that rota