Silica sodalite, nonaqueous synthesis

An interesting feature of the nonaqueous synthesis of zeolites compared with their hydrothermal synthesis is that pure-silica analogues of some known zeolite structures, for instance, of sodalite, ferrierite, and whose aqueous synthesis had been unsuccessful until that... 

Bibby, D.M., Baxter, N.I., Grant-Taylor, D. and Parker, L.M. (1989)" Nonaqueous Synthesis of Silica Sodalite", in MX. Occelli and H . Robson (eds). Zeolite Synthesis, ACS Symposium Series 398, American Chemical Society, Washington DC, pp. 209-220. 

A new method for the synthesis of silica-rich or pure silica sodalite has been reported using nonaqueous synthesis media such as ethylene glycol or other suitable solvents [6]. The product tends to be silica-rich, and in the absence of aluminum it is pure silica with unit cell composition Sij 2024 2 C2H4(0H)2 Interestingly, the silica sodalite... 

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