William Henry (chemist)
Encyclopedia
William Henry was an English chemist
Chemistry
Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure and properties. Chemistry is concerned with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds....

.
He was the son of Thomas Henry (apothecary)
Thomas Henry (apothecary)
Thomas Henry was a surgeon and apothecary. He was also a Fellow of the Royal Society of England. He was also the father of William Henry, the chemist that formulated Henry's Law....

 and was born in Manchester
Manchester
Manchester is a city and metropolitan borough in Greater Manchester, England. According to the Office for National Statistics, the 2010 mid-year population estimate for Manchester was 498,800. Manchester lies within one of the UK's largest metropolitan areas, the metropolitan county of Greater...

 England
England
England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

. He developed what is known today as Henry's Law
Henry's law
In physics, Henry's law is one of the gas laws formulated by William Henry in 1803. It states that:An equivalent way of stating the law is that the solubility of a gas in a liquid at a particular temperature is proportional to the pressure of that gas above the liquid...

.

Life

William Henry was apprenticed to Thomas Percival
Thomas Percival
Thomas Percival FRS FRSE FSA was an English physician and author, best known for crafting perhaps the first modern code of medical ethics...

 and later worked with John Ferriar at the Manchesters Infirmary. He began to study medicine at Edinburgh
Edinburgh
Edinburgh is the capital city of Scotland, the second largest city in Scotland, and the eighth most populous in the United Kingdom. The City of Edinburgh Council governs one of Scotland's 32 local government council areas. The council area includes urban Edinburgh and a rural area...

 in 1795, taking his doctor's degree in 1807, but ill-health interrupted his practice as a physician
Physician
A physician is a health care provider who practices the profession of medicine, which is concerned with promoting, maintaining or restoring human health through the study, diagnosis, and treatment of disease, injury and other physical and mental impairments...

, and he devoted his time mainly to chemical research, especially with regard to gases. One of his best-known papers (published in Philosophical Transactions of the Royal Society
Philosophical Transactions of the Royal Society
The Philosophical Transactions of the Royal Society is a scientific journal published by the Royal Society of London. It was established in 1665, making it the first journal in the world exclusively devoted to science, and it has remained in continuous publication ever since, making it the world's...

, 1803) describes experiments on the quantity of gases absorbed by water at different temperatures and under different pressures. His results are known today as Henry's law
Henry's law
In physics, Henry's law is one of the gas laws formulated by William Henry in 1803. It states that:An equivalent way of stating the law is that the solubility of a gas in a liquid at a particular temperature is proportional to the pressure of that gas above the liquid...

. His other papers deal with gas-analysis, fire-damp
Firedamp
Firedamp is a flammable gas found in coal mines. It is the name given to a number of flammable gases, especially methane. It is particularly commonly found in areas where the coal is bituminous...

, illuminating gas
Gas lighting
Gas lighting is production of artificial light from combustion of a gaseous fuel, including hydrogen, methane, carbon monoxide, propane, butane, acetylene, ethylene, or natural gas. Before electricity became sufficiently widespread and economical to allow for general public use, gas was the most...

, the composition of hydrochloric acid
Hydrochloric acid
Hydrochloric acid is a solution of hydrogen chloride in water, that is a highly corrosive, strong mineral acid with many industrial uses. It is found naturally in gastric acid....

 and of ammonia
Ammonia
Ammonia is a compound of nitrogen and hydrogen with the formula . It is a colourless gas with a characteristic pungent odour. Ammonia contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to food and fertilizers. Ammonia, either directly or...

, urinary and other morbid concretions, and the disinfecting powers of heat. His Elements of Experimental Chemistry (1799) enjoyed considerable vogue in its day, going through eleven editions in 30 years. He was one of the founders of the Mechanics' Institute that was to become the University of Manchester Institute of Science and Technology.

He was elected a Fellow of the Royal Society in February 1809, having been awarded their prestigious Copley Medal
Copley Medal
The Copley Medal is an award given by the Royal Society of London for "outstanding achievements in research in any branch of science, and alternates between the physical sciences and the biological sciences"...

 in 1808.

He shot himself in his private chapel at Pendlebury
Pendlebury
Pendlebury is a suburban town in the City of Salford, in Greater Manchester, England. It lies to the northwest of Manchester city centre, northwest of Salford, and southeast of Bolton....

, near Manchester, in 1836.

Further reading

  • Elwood, Willis J. & Tuxford, A. Felicité (eds.) (1984) Some Manchester Doctors: a biographical collection to mark the 150th anniversary of the Manchester Medical Society, 1834-1984. Manchester: Manchester University Press
  • Henry, William Charles (1837) A Biographical Account of the late Dr Henry. Manchester: F. Looney (Dr William Charles Henry, also known as Dr Charles Henry, was a son of William Henry; he donated the first collection of scientific books to the Owens College Library in 1851.)

External links

  • Henry, William, Dictionary of National Biography
    Dictionary of National Biography
    The Dictionary of National Biography is a standard work of reference on notable figures from British history, published from 1885...

    , vol. 9, 1908, page 580
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