Adriaan Paets van Troostwijk (4 March 1752 – 3 April 1837) was a Dutch businessman and an amateur chemist. He conducted experiments and theorized on the nature of substances, conduct some of the earliest experiments on the electrolysis of water in collaboration with physician Johan Rudolph Deiman (1743–1808).
Van Troostwijk was born in
Utrecht
Utrecht ( ; ; ) is the List of cities in the Netherlands by province, fourth-largest city of the Netherlands, as well as the capital and the most populous city of the Provinces of the Netherlands, province of Utrecht (province), Utrecht. The ...
to cloth-merchant Wouter van Troostwijk and Johanna Dolphina Paets. He married Marie Cornelia Loten in 1770 and joined the business of his father-in-law in Amsterdam until 1816 and lived in Niewersluis subsequently. Here he became a member of the ''Felix Meritis'', an Amsterdam organization of polymaths founded in 1777. Along with his physician friend Jan Deiman, he conducted experiments and wrote 35 papers between 1778 and 1818. The director of the Haarlem
Teylers museum
Teylers Museum () is an Art museum, art, Natural history museum, natural history, and science museum in Haarlem, Netherlands. Established in 1778, Teylers Museum was founded as a centre for contemporary art and science. The historic centre of the ...
Martinus van Marum also collaborated with Paets van Troostwijk. Using an electrostatic generator, he was able to split water with gold as an electrode (acting as a catalyst as examined in studies in the 21st century) and was able to identify the components oxygen and hydrogen. In 1778 he conducted experiments on plants and their modification of the air. Van Marum lived for some time in Paris in 1785 and became a follower of
Lavoisier
Antoine-Laurent de Lavoisier ( ; ; 26 August 17438 May 1794), CNRS (
phlogiston theory
The phlogiston theory, a superseded scientific theory, postulated the existence of a fire-like element dubbed phlogiston () contained within combustible bodies and released during combustion. The name comes from the Ancient Greek (''burnin ...
until 1788. In 1792 he published on experiments with sulphide compounds. Along with Cornelis Rudolphus Theodorus Krayenhoff he examined cures and medical applications of electricity. Along with Deiman the founded a society in 1791 called the De Bataafsche Societeit (The Batavian Society) which later was called the Gezelschap der Hollandsche Scheikundigen (Society of Dutch Chemists). In 1815 he purchased the Sterreschans estate.