Joseph Proust
French chemist
FranceSummary
Updated 2026-06-01
Joseph Louis Proust was a French chemist. He was best known for his discovery of the law of definite proportions in 1797, stating that chemical compounds always combine in constant proportions.
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Joseph Louis Proust was a French chemist. He was best known for his discovery of the law of definite proportions in 1797, stating that chemical compounds always combine in constant proportions.
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Source confidence60.0
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