# Joseph Proust

> The chemist who proved that nature follows recipes: chemical compounds lock into fixed ratios, never fudging the proportions.

*French chemist*

**Canonical URL:** https://fame.am/person/joseph-proust

## Identity
- **Profile type:** Scientist ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Scientists
- **Country:** France
- **Born:** 1754-09-26
- **Died:** 1826-07-05
- **Status:** deceased
- **Gender:** male

## Bio

Joseph Louis Proust was born in France on 26 September 1754. Working as a chemist through the turn of the 19th century, he arrived at a discovery that redrew the ground rules: in 1797 he announced the law of definite proportions, the principle that chemical compounds always combine in constant, unchanging ratios. It was a line in the sand against randomness, proof that matter obeyed strict mathematical order. He died on 5 July 1826, leaving chemistry with a law it still teaches in every first-year course.

## Fame
- **Popularity score:** 55.2 / 100
- **Momentum:** 6.6 / 100  (trend: RISING)
- **Historical depth:** 22.5 / 100
- **Now attention:** 36.5 / 100
- **Source confidence:** 60.0 / 100
- **Profile completeness:** 70.0 / 100

## Topics
#Scientists, #Scientist, #Chemistry, #France, #Europe, #Early Modern Era

## Sources
- [Wikidata](https://www.wikidata.org/wiki/Q159923)
- [Wikipedia](https://en.wikipedia.org/wiki/Joseph_Proust)
- [Pantheon 2.0](https://pantheon.world/profile/person/Joseph%20Proust)
- [ژوزف پروست](https://azb.wikipedia.org/wiki/%DA%98%D9%88%D8%B2%D9%81_%D9%BE%D8%B1%D9%88%D8%B3%D8%AA)
- [Cozef Lui Prust](https://az.wikipedia.org/wiki/Cozef_Lui_Prust)
- [Жазэф Луі Пруст](https://be.wikipedia.org/wiki/%D0%96%D0%B0%D0%B7%D1%8D%D1%84_%D0%9B%D1%83%D1%96_%D0%9F%D1%80%D1%83%D1%81%D1%82)
- [Жозеф Пруст](https://bg.wikipedia.org/wiki/%D0%96%D0%BE%D0%B7%D0%B5%D1%84_%D0%9F%D1%80%D1%83%D1%81%D1%82)
- [Joseph Louis Proust](https://ca.wikipedia.org/wiki/Joseph_Louis_Proust)
- [Joseph Louis Proust](https://cs.wikipedia.org/wiki/Joseph_Louis_Proust)
- [Joseph Louis Proust](https://de.wikipedia.org/wiki/Joseph_Louis_Proust)
- [Ζοζέφ Προυστ](https://el.wikipedia.org/wiki/%CE%96%CE%BF%CE%B6%CE%AD%CF%86_%CE%A0%CF%81%CE%BF%CF%85%CF%83%CF%84)
- [Joseph Proust](https://eo.wikipedia.org/wiki/Joseph_Proust)
- [Louis Proust](https://es.wikipedia.org/wiki/Louis_Proust)
- [Joseph Louis Proust](https://et.wikipedia.org/wiki/Joseph_Louis_Proust)
- [Louis Proust](https://eu.wikipedia.org/wiki/Louis_Proust)
- [ژوزف پروست](https://fa.wikipedia.org/wiki/%DA%98%D9%88%D8%B2%D9%81_%D9%BE%D8%B1%D9%88%D8%B3%D8%AA)
- [Joseph Louis Proust](https://fi.wikipedia.org/wiki/Joseph_Louis_Proust)
- [Joseph Louis Proust](https://fr.wikipedia.org/wiki/Joseph_Louis_Proust)
- [ז'וזף לואי פרוסט](https://he.wikipedia.org/wiki/%D7%96'%D7%95%D7%96%D7%A3_%D7%9C%D7%95%D7%90%D7%99_%D7%A4%D7%A8%D7%95%D7%A1%D7%98)
- [Joseph Louis Proust](https://hu.wikipedia.org/wiki/Joseph_Louis_Proust)
- [Ժոզեֆ Լուի Պրուստ](https://hy.wikipedia.org/wiki/%D4%BA%D5%B8%D5%A6%D5%A5%D6%86_%D4%BC%D5%B8%D6%82%D5%AB_%D5%8A%D6%80%D5%B8%D6%82%D5%BD%D5%BF)
- [Joseph Louis Proust](https://id.wikipedia.org/wiki/Joseph_Louis_Proust)
- [Joseph Proust](https://it.wikipedia.org/wiki/Joseph_Proust)
- [ジョゼフ・プルースト](https://ja.wikipedia.org/wiki/%E3%82%B8%E3%83%A7%E3%82%BC%E3%83%95%E3%83%BB%E3%83%97%E3%83%AB%E3%83%BC%E3%82%B9%E3%83%88)
- [Жозеф Луи Пруст](https://kk.wikipedia.org/wiki/%D0%96%D0%BE%D0%B7%D0%B5%D1%84_%D0%9B%D1%83%D0%B8_%D0%9F%D1%80%D1%83%D1%81%D1%82)
- [Wikiquote](https://it.wikiquote.org/wiki/Joseph_Proust)
- [جوزيف لويس بروست](https://ar.wikipedia.org/wiki/%D8%AC%D9%88%D8%B2%D9%8A%D9%81_%D9%84%D9%88%D9%8A%D8%B3_%D8%A8%D8%B1%D9%88%D8%B3%D8%AA)
- [چوزيف لويس بروست](https://arz.wikipedia.org/wiki/%DA%86%D9%88%D8%B2%D9%8A%D9%81_%D9%84%D9%88%D9%8A%D8%B3_%D8%A8%D8%B1%D9%88%D8%B3%D8%AA)

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