Summary in this demo, students will hear a story about how ira remsen’s interest in chemistry was sparked and watch a demonstration that recreates her first experiment reacting nitric acid with a copper penny. Ira remsen, md, 1865 co-discovered saccharin artificial sweetener one of five founding faculty at johns hopkins university (1846-1927) ira remsen, md, phd, graduated from the new york medical college school of medicine in 1865 and later received a phd from the university of göttingen in sweden. This is a reproduction of a book published before 1923 this book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc that were either part of the original artifact, or were introduced by the scanning process.
Ira remsen, although he contributed significantly to the research of his time, is one of the few chemists remembered mainly for his teaching and mentorship it was under his leadership that american chemical research came of age in the late nineteenth and early twentieth centuries remsen was born in new york city on february 10, 1846, into a. Ira remsen 50 likes ira remsen was a chemist who, along with constantin fahlberg, discovered the artificial sweetener saccharin he was the second. 2 saccharin - ira remsen, constantin fahlberg in 1879, ira remsen and constantin fahlberg, at work in a laboratory at johns hopkins university, paused to eat.
One night he bit into his dinner roll it tasted initially sweet and then bitter then he licked his fingers, same response the next morning he went into the lab and tasted the chemicals they had been working with the previous day. Ira remsen is the author of american chemical journal, 1896, vol 18 (00 avg rating, 0 ratings, 0 reviews), american chemical journal, 1896, vol 18 (0. Ira remsen, chemist and educator, was born in 1846 in new york city educated at columbia's college of physicians and surgeons, where he graduated at the age of 21 in 1867, remsen went on to study chemistry in germany, earning a phd in 1872. View ira remsen investigates nitric acid from chem 1211l at clayton state university the following is a passage describing a scientist's encounter with nitric acid, hno3, and copper, cu nitric acid. A history of saccharin december 27, 2010 1879 — johns hopkins university chemists ira remsen and constantin fahlberg publish their first paper describing benzoic sulfimide, which became known as saccharin 1901 — monsanto is founded to produce saccharin in the us.
Ira remsen (february 10, 1846 – march 4, 1927) was a chemist who, along with constantin fahlberg, discovered the artificial sweetener saccharin he was the second president of johns hopkins university. By ira remsen (author) be the first to review this item isbn-13: 978-1330429815 isbn-10: 1330429818 why is isbn important isbn this bar-code number lets you verify that you're getting exactly the right version or edition of a book. Remsen, ira 1846 - 1927 degree: phd date: 1870 place: göttingen teacher/research advisor: fittig discovered rules governing oxidation of aromatic sidechains and protective effect of ortho-substituents synthesized saccharin first attempt (in the reaction of co with o3) to prove the. Ira remsen (1846–1927) was an influential american chemist in the 19th and early 20th centuries trained as a physician in new york city, remsen abandoned the practice of medicine soon after receiving his degree, choosing instead to pursue a.
He earned a medical degree to satisfy his family, but then moved to germany to pursue his true passion in chemistry he discovered what would become saccharin after residue on his hands from coal and tar derivatives he was working with ended up on his dinner rolls he was the first recipient of the. Many versions of the classic ira remsen experience involving copper and concentrated nitric acid have been used as lecture demonstrations remsen's original reminiscence from 150 years ago is included in the supporting information, and his biography can be found on the internet. Fahlberg and remsen co-authored research papers on saccharin over the next few years, but fahlberg struck out on his own when he obtained a german patent for the compound in 1884, followed by a. English: constantin fahlberg (december 22, 1850 in tambov, russia, † 15 august 1910 in nassau (lahn), germany) identified in the analysis of chemical compounds in coal tar, which he did in an investigative series for professor ira remsen (1846 - 1927) at johns hopkins university 1877/78, the sweet taste of sulfinid benzoic acid, a chemical.
Ira remsen was born in new york city, february 10, 1846 his parents were both descended from the early dutch settlers of new york and his mother had also huguenot blood in her veins for two years, from eight to ten, the boy lived in the country and had that intimate contact with nature which is im. The ira remsen house is a historic house at 214 west monument street in baltimore, maryland built in the 1880s, this nondescript row house was the home of ira remsen (1846-1927),. Am chemist, co-discoverer (with dr constantine fahlberg) of the first artificial sweetener, saccharin.