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Proust, Joseph Louis (1754–1826)

Joseph Proust
Joseph Proust was a French chemist who specialized in analysis, with little interest in tehory. As a result of his researches, however, he established the law of definite proportions, or Proust's Law. This law states that the composition of chemical compounds is proportionate regardless of the size of the sample. It is equivalent to the law of constant composition.

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