H. Thoms et al., THE THERMAL-DECOMPOSITION OF MAGNESIUM ALCOHOLATES TO MAGNESIA (MGO) - STUDIES BY IR AND THERMAL-ANALYSIS, Solid state ionics, 101, 1997, pp. 79-84
The thermal behaviour of magnesium-n-alcoholates, branched magnesium a
lcoholates and magnesium diolates on the way to MgO was studied by IR-
spectroscopy and thermal analysis. The covalent character of the Mg-O
bond increases with increasing length of the alcoholates and diolates.
The studied magnesium alcoholates and diolates decompose in air or ox
ygen atmosphere via alkoxy/hydroxy species. Thermal analysis shows tha
t alcoholates and diolates decompose to MgO in a similar way; in the f
irst TG-steps mostly hydrocarbon fragments are eliminated from the sam
ples, the next TG-steps show mostly water and carbon dioxide as gaseou
s reaction products. The final decomposition temperature to MgO also i
ncreases with increasing length of the carbon chain of the alcoholates
and diolates.