| Definition: | chemical element and its compounds in the natural state or obtained by any manufacturing process, including any additive necessary to preserve its stability and any impurity deriving from the process used, but excluding any solvent which may be separated without affecting its stability or changing its composition Note 1 to entry: Definition is taken from Globally harmonized system of classification and labelling (GHS): 2003, Chapter 1.2, Definitions and abbreviations.
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