http://www.w3.org/ns/prov#value | - However, the higher pentaerythritols can be mixed with a solvent, such as xylene, so they can be suspended in an autoclave of the kind described subsequently, for oxypropylation, along with a catalyst, such as sodium methylate equivalent to 1% by weight of the polypentaerythritol, and then treated with a small amount of ethylene oxide, for instance, approximately one mole per pentaerythritol unit.
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