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Mercury vapour lamps contg. lanthanide halides - using equal stoichiometric amts. of monovalent and trivalent metals
Mercury vapour lamps contg. lanthanide halides - using equal stoichiometric amts. of monovalent and trivalent metals
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机译：汞蒸气灯续。镧系元素卤化物-使用相等的化学计量比。一价和三价金属
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摘要
High-pressure mercury vapour discharge lamp contains halides of monovalent and trivalent metals, esp. the halides of metals in the third sub-group, such as the rare-earth metals, SC, Y, and the lanthanides; the total moles of hte monovalent metals being equal to the total moles of the trivalent metals. The halides are pref. iodides or bromides; the trivalent metals are pref. Lanthanides; and the monovalent metals are pref. Tl, Cs, In, Na, and/or Li. The highly pure, water-free trivalent halides and the monovalent halides are pref. added to the discharge vessel in a glove-box using a protective atmos., esp. argon. Optimum light yield and lamp life are obtd.
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