| http://www.w3.org/ns/prov#value | - carbon atoms, R2 is an alkyl group having 1 to 4 carbon atoms, X is a halogen atom, and letter b is equal to 0 or 1, and subjecting the silicon alkoxide and the organic silicon compound within the cell walls, the inter- and intracellular spaces, to hydrolysis at various temperatures and polycondensation. 2.
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