William Prout

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Prout, William,

1785–1850, English chemist and physician. Prout's hypothesis, advanced in 1815–16, suggested that atomic weights of elements are multiples of that of hydrogen and that elements are formed by a condensation or grouping of hydrogen atoms. Later work on the determination of atomic weights showed that part of the hypothesis does, in general, apply. Prout won contemporary renown for his demonstration (1823) of the presence of free hydrochloric acid in the gastric juice of the stomach. He wrote many papers on the chemistry of the blood and urine.
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William Prout, who also entered Guy's in 1811, understood this clearly.
The life and work of William Prout. Med Hist 1965; IX:101-26.
William Prout: early 19th century physician-chemist.
In 1824, William Prout showed that the acid of the gastric juice was hydrochloric acid.
William Prout and the discovery of hydrochloric acid in the gastric juice.
This approach was extended by William Prout, who at Marcet's request had analyzed the black urine in the earliest description of alcaptonuria.
William Prout (1785-1850) is known for his discovery of the nature of the acid in the stomachs of animals.