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Jacob Jan Alexander Wijs (12 November 1864 … Jacob Jan Alexander Wijs (12 November 1864 – 13 December 1942) was a Dutch chemist. He spent much of his career at the oil factory in Delft, where he studied the iodine value. In 1898 he described the addition of iodine monochloride to the double bond in alkenes to give chloro-iodo alkanes. This reaction was later named the Wijs-Hanuš method, and the reagent that Wijs used in his demonstration, namely iodine monochloride in glacial acetic acid, the Wijs reagent. In 1895 Wijs married Maria Salm, they had three children, born in 1896, 1900 and 1911.ree children, born in 1896, 1900 and 1911.
, Jacob Jan Alexander Wijs (* 12. November 1 … Jacob Jan Alexander Wijs (* 12. November 1864 in Amsterdam; † 13. Dezember 1942 in Den Haag) war ein niederländischer Chemiker. Nach ihm ist eine Methode zur Bestimmung der Iodzahl ungesättigter Fette benannt. Nach dem Schulbesuch in Amsterdam und anschließendem Chemiestudium wurde Wijs 1893 bei van't Hoff promoviert. Ab 1889 war er bei der Nederlandse Oliefabriken in Delft angestellt, wo er bis zu seiner Pensionierung 1928 tätig war. Er wurde 1939 von der Reichsuniversität Leiden zusätzlich in Geschichte promoviert.eiden zusätzlich in Geschichte promoviert.
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Jacob Jan Alexander Wijs (12 November 1864 … Jacob Jan Alexander Wijs (12 November 1864 – 13 December 1942) was a Dutch chemist. He spent much of his career at the oil factory in Delft, where he studied the iodine value. In 1898 he described the addition of iodine monochloride to the double bond in alkenes to give chloro-iodo alkanes. This reaction was later named the Wijs-Hanuš method, and the reagent that Wijs used in his demonstration, namely iodine monochloride in glacial acetic acid, the Wijs reagent. In 1895 Wijs married Maria Salm, they had three children, born in 1896, 1900 and 1911.ree children, born in 1896, 1900 and 1911.
, Jacob Jan Alexander Wijs (* 12. November 1 … Jacob Jan Alexander Wijs (* 12. November 1864 in Amsterdam; † 13. Dezember 1942 in Den Haag) war ein niederländischer Chemiker. Nach ihm ist eine Methode zur Bestimmung der Iodzahl ungesättigter Fette benannt. Nach dem Schulbesuch in Amsterdam und anschließendem Chemiestudium wurde Wijs 1893 bei van't Hoff promoviert. Ab 1889 war er bei der Nederlandse Oliefabriken in Delft angestellt, wo er bis zu seiner Pensionierung 1928 tätig war. Er wurde 1939 von der Reichsuniversität Leiden zusätzlich in Geschichte promoviert.eiden zusätzlich in Geschichte promoviert.
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Jacob Jan Alexander Wijs
, J.J.A. Wijs
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