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COMBINING WEIGHTThe apparent equivalent weight of, for example, a sulfonic acid, where two or more acidic components, in this case the sulfonic acid product and sulfuric acid impurity, are present. (see RFF 705.10.51 - COMBINING WEIGHT).
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COMBINING WEIGHT
(chemistry,dated) The proportional weight, usually referred to hydrogen as a standard, and for each element a fixed multiple of the atomic weight, by which an element unites with another to form a d [..]
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