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John Stenhouse's respirator. John Stenhouse was born in Barrhead in Glasgow on 21 October 1809. He was the eldest son of William Stenhouse, a calico-printer in the family firm of John Stenhouse & Co of 302 High Street, [2] Glasgow, and Elizabeth Currie; [3] he was the only one of their children to survive beyond infancy.
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In 1840, the Scottish chemist John Stenhouse found that the same chemical could be produced by distilling a wide variety of crop materials, including corn, oats, bran, and sawdust, with aqueous sulfuric acid; he also determined furfural's empirical formula (C 5 H 4 O 2). [8]
Inventors in Europe included John Stenhouse, a Scottish chemist, who investigated the power of charcoal in its various forms, to capture and hold large volumes of gas. He built one of the first respirators able to remove toxic gases from the air, paving the way for activated charcoal to become the most widely used filter for respirators. [ 8 ]
Mills graduated BSc in 1863 and gained a doctorate (DSc) in 1865. From 1861 he worked under Prof John Stenhouse, with colleagues also including William A. Tilden. [1] He was elected a Fellow of the Royal Society of London on 4 June 1874. [2] He moved to Glasgow around 1876 as Professor of Chemistry.
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Chloropicrin was discovered in 1848 by Scottish chemist John Stenhouse. He prepared it by the reaction of sodium hypochlorite with picric acid : HOC 6 H 2 (NO 2 ) 3 + 11 NaOCl → 3 Cl 3 CNO 2 + 3 Na 2 CO 3 + 3 NaOH + 2 NaCl
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