On the Conditions of Synthesis of Zeolite ‘A’: A Molecular Sieve

Zeolite ‘A’, a hydrous sodium aluminosilicate exhibiting molecular sieving properties, was synthesized at 75–120° from gels of various alkali and silica concentrations. The effects of parameters like gel composition, temperature and agitation of the starting gel have been discussed in brief, and the optimum conditions for complete conversion of a gel into Zeolite ‘A’ crystals have been suggested.