herapathite

herapathite
Iodoquinine sulfate, a chemical compound whose crystals are dichroic and thus can be used for polarizing light.

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  • Herapathite — Herapathite, or iodoquinine sulfate, is a chemical compound whose crystals are dichroic and thus can be used for polarizing light.According to Edwin H. Land, it was discovered in 1852 by William Herapath, a doctor in Bristol. One of his pupils… …   Wikipedia

  • Herapathite — Her a*path*ite, n. [Named after Dr. Herapath, the discoverer.] (Chem.) The sulphate of iodoquinine, a substance crystallizing in thin plates remarkable for their effects in polarizing light. [1913 Webster] …   The Collaborative International Dictionary of English

  • Herapathite — L herapathite ou sulfate d iodoquinine est un composé dont les cristaux sont dichroïques et peuvent être ainsi employés pour polariser la lumière. Selon Edwin H. Land, elle a été découverte en 1852 par William Herapath, un docteur de Bristol. Un… …   Wikipédia en Français

  • herapathite — her·a·path·ite …   English syllables

  • herapathite — ˈherəˌpaˌthīt, pȧˌ noun ( s) Etymology: William B. Herapath died 1868 English chemist + English ite : a salt of quinine that is obtained by treating the sulfate with iodine in the form of rhomboidal plates capable of polarizing light and that is …   Useful english dictionary

  • Iodoquinine — I o*do*qui nine, n. [Iodo + quinine.] (Chem.) A iodide of quinine obtained as a brown substance,. It is the base of herapathite. See {Herapathite}. [1913 Webster] …   The Collaborative International Dictionary of English

  • Polarizer — For the photographic filter, see Polarizing filter (Photography). A polarizing filter cuts down the reflections (top) and made it possible to see the photographer through the glass at roughly Brewster s angle although reflections off the back… …   Wikipedia

  • Polariseur — …   Wikipédia en Français

  • Polariseurs — Polariseur …   Wikipédia en Français

  • Herapathit — Strukturformel …   Deutsch Wikipedia

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