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Periodic Table Of The Elements
It is used in making mercury-vapor lamps and advertising signs, etc., ... It acts as a cumulative poisen since only small amounts of the element can be ...
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Periodic Table Of The Elements
More than thirty promethium compounds have been prepared. Most are colored. Promethium-147 is available to A.E.C. licensees at a cost of about 50 cents per ...
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Periodic Table Of The Elements
Daane, Dennison, and Spedding prepared a much purer form in 1953 from which the chmical and physical properties of the element could be determined. ...
4.
Periodic Table Of The Elements
More than thirty promethium compounds have been prepared. Most are colored. Promethium-147 is available to A.E.C. licensees at a cost of about 50 cents per ...
5.
Periodic Table Of The Elements
It is not generally appreciated that mercury is a virulent poison and is readily absorbed through the respiratory tract. the gastrointestinal tract, ...
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