Étienne-Ossian Henry (27 November 1798 in
Paris
Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. S ...
– 26 August 1873) was a
French chemist
A chemist (from Greek ''chÄ“m(Ãa)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe th ...
, son of
Nöel 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
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Asia
Israel
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. 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. Mineral water may usually be still or sparkling (carbonated/effervescent) according to the presence or absence of added gases.
Tra ...
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 precipitate proteins and various other organic compounds including amino acids and alkaloids.
The term ''tannin'' (from Anglo-Norman ''tanner'', ...
. In 1827, with
Auguste-Arthur Plisson
Auguste-Arthur Plisson (died August 1832) was a French chemist. Born in Orléans, Plisson was orphaned at an early age, but overcame the difficulties that caused him with the determination he brought to being a student of chemistry in Paris. Taught ...
, 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. Like all other amino acids, it contains an amino group and a carboxylic acid. Its α-amino group is in the pro ...
.
In 1845 he invented the first true
burette
A burette is a graduated glass tube with a tap at one end, for delivering known volumes of a liquid, especially in Titration, titrations. It is a long, graduated glass tube, with a stopcock at its lower end and a tapered capillary tube at the stop ...
for titration.
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