| http://www.w3.org/ns/prov#value | - , for example ion exchangers, such as cation exchangers, e.g. in the H+ form, depending on the nature of the reaction and/or of the reactants at reduced, normal or elevated temperature, for example in a temperature range of from about -100 ??C to about 190 ??C, including, for example, from approximately -80 ??C to approximately 150 ??C, for example at from -80 to -60 ??C, at room temperature, at f
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