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About: Thallium halides     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Whole105869584, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: yago:WikicatMetalHalidesyago:WikicatMixedValenceCompoundsyago:WikicatThalliumCompoundsyago:Abstraction100002137yago:Chemical114806838yago:Cognition100023271yago:Compound105870180yago:Compound114818238yago:Concept105835747yago:Content105809192yago:Halide114904359yago:Idea105833840yago:Material114580897yago:Matter100020827yago:Part113809207yago:PhysicalEntity100001930yago:PsychologicalFeature100023100yago:Relation100031921yago:Salt115010703yago:Substance100019613yago:Whole105869584 New Facet based on Instances of this Class

The thallium halides include monohalides, where thallium has oxidation state +1, trihalides in which thallium generally has oxidation state +3, and some intermediate halides containing thallium with mixed +1 and +3 oxidation states. These materials find use in specialized optical settings, such as focusing elements in research spectrophotometers. Compared to the more common zinc selenide-based optics, materials such as thallium bromoiodide enable transmission at longer wavelengths. In the infrared, this allows for measurements as low as 350 cm−1 (28 μm), whereas zinc selenide is opaque by 21.5 μm, and ZnSe optics are generally only usable to 650 cm−1 (15 μm).