biography
| name: |
Proust, Joseph Louis
|
pronunciation:
[proost]
| sex:
| male
|
| lived:
| (1754–1826)
|
| biography:
| Chemist, born in Angers, NW France. He was director of the royal laboratory in Madrid (1789–1808), but returned to France after the fall of his patron, Charles IV, and the destruction of the laboratory by the French. He developed the law of constant proportion for a chemical compound, known as Proust's law, over which he was in a controversy with Claude Berthollet lasting eight years, and which gave valuable support to Dalton's work on chemical compounds. |
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