Étienne-Ossian Henry (27 November 1798 in
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...
– 26 August 1873) was a
French chemist
A chemist (from Greek ''chÄ“m(Ãa)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a graduated scientist trained in the study of chemistry, or an officially enrolled student in the field. Chemists study the composition of ...
, son of
Noël-Étienne Henry (1769–1832), and trained by his father, who was director of the Central Pharmacy of the Parisian hospitals and professor in the School of Pharmacy. In 1824, he became director of the chemical laboratory of the
Academy of Medicine. He discovered
sinapin and studied
mineral water
Mineral water is water from a mineral spring that contains various minerals, such as salts and sulfur compounds. It is usually still, but may be sparkling ( carbonated/ effervescent).
Traditionally, mineral waters were used or consumed at t ...
s, the milk of various animals,
nicotine
Nicotine is a natural product, naturally produced alkaloid in the nightshade family of plants (most predominantly in tobacco and ''Duboisia hopwoodii'') and is widely used recreational drug use, recreationally as a stimulant and anxiolytic. As ...
, and
tannin
Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and Precipitation (chemistry), precipitate proteins and various other organic compounds including amino acids and alkaloids. The term ''tannin'' is widel ...
. In 1827, with
Auguste-Arthur Plisson, who had studied under his father, he discovered
aspartic acid
Aspartic acid (symbol Asp or D; the ionic form is known as aspartate), is an α-amino acid that is used in the biosynthesis of proteins. The L-isomer of aspartic acid is one of the 22 proteinogenic amino acids, i.e., the building blocks of protei ...
.
In 1845, he invented the first true
burette
A burette (also spelled buret) is a graduated glass tube with a tap at one end, for delivering known volumes of a liquid, especially in titrations. It is a long, graduated glass tube, with a stopcock at its lower end and a tapered capillary tub ...
for titration, which is a widely used device in analytical chemistry and related fields.
His son was
Emmanuel-Ossian Henry (1826-1867).
HENRY (Emmanuel Ossian)
07/11/1826 - 31/03/1867
Works
His works include:
*''Traité pratique d'analyse chimique des eaux minérales'' (second edition, 1858), with his father
*''Mémoiré sur l'analyse organique'' (1830), with Plisson
*''Analyse chimique des eaux qui alimentent les fontaines publiques de Paris'' (1848), with Boutron-Gharland
*A translation of the '' Codex Medicamentarius'' (1827), with Ratier
References
*
External links
Notice sur les travaux de M. Henry fils: ''Pharmacien, membre de l'Academie royale de medecine, ex-sous-chef a la Pharmacie centrale, membre des societes de pharmacie, de chimie medicale, des pharmaciens de l'allemagne septentrionale, l'un des redacteurs du journal de pharmacie, etc.''
{{DEFAULTSORT:Henry, Etienne Ossian
19th-century French chemists
French science writers
1798 births
Henry, Etienne Henry
French male non-fiction writers