Vitron theory

Because of the analogy between (H20)n and (02Si)n, the problems associated with the structural interpretation of liquid water have their glassy state analogies in the theories of glass structure. Even Pauling s clathrate hydrate model for liquid water has its counterpart in the vitron theory of glass [750]. Both theories are discredited by the experts in the Held. 

The vitron theory is probably related to the later iceberg theory, namely, the tendency of silica to form small immiscible clusters in melts of lower alkali content (205). In sodium silicate glass with a SiOicNajO ratio of 7 1, the model predicts collidal silica units or particles about 1.9 nm in diameter. 

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