3. Chemical stability: coupling chemical reactivity and structural relaxation
In addition to physical stability, the crystalline state generally ensures high chemical stability of a compound. The amorphous state, on the other hand, can be a source of chemical instability. This is well demonstrated, for example, in a quantitative nuclear magnetic resonance study ( 13 C NMR – CPMAS spectrum evolution) of the mutarotation reaction of dry lactose . When anhydrous crystalline α-isomeric lactose (αL) is heated to melting (≈ 200°C), no mutarotation from α to β form is observed. After melting,...
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
Chemical stability: coupling chemical reactivity and structural relaxation
Glass transition of amorphous multicomponent systems
Article included in this offer
"Drugs and pharmaceuticals"
(
125 articles
)
Updated and enriched with articles validated by our scientific committees
A set of exclusive tools to complement the resources
Bibliography
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
