Didymium (Greek: δίδυμο, twin) is a mixture of the elements praseodymium and neodymium. It is used in safety glasses for glassblowing and blacksmithing...
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chemist Carl Gustav Mosander extracted a rare-earth oxide residue he called didymium from a residue he called "lanthana", in turn separated from cerium salts...
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lanthanum oxide and a pinkish third component which he called "didymium" meaning "twin". Didymium was accepted as an element for many years, appearing in Dmitri...
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Didymium is a genus of slime molds in the family Didymiaceae. Didymium aquatilis Didymium difforme Didymium squamulosum Didymium wildpretii Leontyev, Dmitry...
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Physarum cinereum (redirect from Didymium cinereum)
cinereum (Batsch) Pers. (1794) Synonyms Lycoperdon cinereum Batsch (1783) Didymium cinereum (Batsch) Fr. (1822 (1829) Badhamia cinerea (Batsch) J.Kickx f...
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Didymium wildpretii is a species of slime mold which feeds on the decaying remains of various species of cacti. It was first described in 2007 and has...
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Didymium difforme is a species of slime mold belonging to the family Didymiidae. "IRMNG - Didymium difforme (Pers.) Gray, 1821". www.irmng.org. Retrieved...
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acid. The metals that formed these oxides were thus named lanthanum and didymium, officially discovered in Vienna in 1885 by Carl Gustaf Mosander. Von Welsbach...
60 KB (6,863 words) - 15:12, 16 August 2024
a so-called "element" that was even given the chemical name of "didymium". "Didymium" was found some years later to be simply a mixture of two genuine...
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expand the ability to see violet and blue hues, similar to didymium glass. However, didymium glasses are superior for this purpose as it absorbs less light...
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TTAGGG Filamentous fungi Neurospora crassa TTAGGG Slime moulds Physarum, Didymium TTAGGG Dictyostelium AG(1-8) Kinetoplastid protozoa Trypanosoma, Crithidia...
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example, Squamuloderma nullifila is actually a species from the genus Didymium. The following classification is based on Adl et al. (2005) while the classes...
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astronomical filters similarly use didymium in heavier concentration. Even astronomical filters which don't use didymium typically are some kind of narrow...
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and on bryophytes. Most Myxogastria are terrestrial, though some, like Didymium aquatilis are aquatic, and D. nigripes is semi-aquatic. Myxogastria are...
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Douglas. "cereal". Online Etymology Dictionary. Retrieved 2011-01-02. didymium was originally mistaken for an element, later it was discovered that it...
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solvents and flames to view the test flame through a cobalt blue glass or didymium glass to filter the interfering light of contaminants such as sodium. Flame...
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known rare-earth elements had reached six: yttrium, cerium, lanthanum, didymium, erbium, and terbium. Nils Johan Berlin and Marc Delafontaine tried also...
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forms very light grayish-blue hexagonal crystals. The rare-earth mixture didymium, previously believed to be an element, partially consists of neodymium(III)...
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difficult one, and those were formerly thought to be just one element didymium – but that is an alloy of the two.[citation needed] There are two series...
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name for promethium. D Didymium 59/60 Mixture of the elements praseodymium and neodymium. Mosander wrongly believed didymium to be an element. Da Davyum...
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curriculum design Di, a prefix used in organic chemistry nomenclature Didymium, a mixture of the elements praseodymium and neodymium once thought to be...
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Welsbach in 1901, was an Austrian scientist and inventor, who separated didymium into the elements neodymium and praseodymium in 1885. He was also one of...
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to −4 °C, with an average minimum temperature of 10 °C. The slime mold, Didymium wildpretii feeds on the decaying remains of F. latispinus in Mexico. Biología...
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55 25.09 Cerium oxide (Ce2O3) 31.38 29.20 36.64 Lanthanum oxide (La2O3) Didymium oxide (Di2O3) } {\displaystyle {\Big \}}} 30.88 26.26 30.21 Yttrium oxide...
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professor of general and agricultural chemistry. In 1874 he theorised that didymium was in fact two elements; this theory was confirmed in 1885 when Carl Auer...
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lanthanum, a tetravalent cerium, and a pentavalent didymium. However, the higher valency for didymium had not been established, and Mendeleev tried to do...
91 KB (11,029 words) - 10:26, 25 August 2024
pp. 1248–9 Mosander, C. G. (1843). "On the new metals, Lanthanium and Didymium, which are associated with Cerium; and on Erbium and Terbium, new metals...
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contained in it have been divided among the genera Physarum, Stemonitis and Didymium. Julia Walochnik; Rolf Michel; Horst Aspöck (2004). "A molecular biological...
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a second element from cerium, and this he called didymium. Although he did not realise it, didymium too was a mixture, and in 1885 it was separated into...
48 KB (6,026 words) - 16:54, 2 September 2024
dielectric in combination with silicon. Praseodymium-doped glass, called didymium glass, turns yellow and is used in welding goggles because it blocks infrared...
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