| http://www.w3.org/ns/prov#value | - Another group of compounds containing a plurality of silicon OH groups are those having two or more silicon atoms bound togetherthrough divalent organic radicals, such as those of the formula wherein R is another OH group or a hydrocarbon radical, preferably an alkyl, alkenyl, cycloalkyl, aryl, alkaryl or aralkyl radical, and R is a divalent organic radical, such as methylene or polymethylene radi
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