Alumina and Aluminates

Protonated sites in these compounds have much higher Xq values, which can be explained in terms of the increased covalency of the bonds. 

Multinuciear Solid-State NMR of Inorganic Materials LaOOH 

LaiOs and AI2O3 were seen at 800°C, resulting from the formation of a very finely divided mixture of the unreacted individual oxides. At 950°C some unreacted oxides remained but there was evidence of significant formation of LaA103. 

Stebbins et al. (1999) have carried out important O MAS NMR studies of the calcium aluminates including CaAl204, which, like NaA102 has a stuffed tridymite 

---

Table 6.9. 0 NMR interaction parameters from aluminas and aluminates.

All of the sparks from formulas producing flitter effects from potassium nitrate mixtures have been found to go through a stage near the end of their burning where the spark has the composition of aluminum coated with alumina and aluminates coated with a very thin film of potassium oxides. 

DeFriend, K.A., Wiesner, M.R. and Barron, A.R. (2003) Alumina and aluminate ultrafiltration membranes derived from alumina nanopartides. Journal of Membrane Science, 224, 11-28. 

ALUMDIUMCOMPOUNDS - ALUMINIUMOXIDE(ALUMINA) - CALCINED,TABULAR, AND ALUMINATE CETffiNTS] (Vol 2) -in automobile polishes pOLISITES] (Vol 19)... 

---