| http://www.w3.org/ns/prov#value | - Suitable compounds can be represented by the formula TiXa (OR')4-a in which X stands for bromine, chlorine or iodine or mixtures thereof, a is an integer of 1 to 4 and R' is an alkyl, cycloalkyl, or aryl group and combinations thereof, such as alkaryl, containing from 1 to about 20 carbon atoms.
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