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Chemical substance - Wikipedia, the free encyclopedia
Title: Chemical substance - Wikipedia, the free encyclopedia
Category: Chemicals
Clicks: 0
Listing added: Sep 9, 2008
PageRank:
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A chemical substance is a material with a definite chemical composition. It is a concept that became firmly established in the late eighteenth century after work by the chemist Joseph Proust on the composition of some pure chemical compounds such as basic copper carbonate.
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