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99.9% Lanthanum Metal La 6.77g Carved Element Periodic Table 10mm Cube For Sale
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99.9% Lanthanum Metal La 6.77g Carved Element Periodic Table 10mm Cube:
$88.49
Product details Material:Lanthanummetal; Cube side length: 10mm (0.4\") Weight: 6.77 grams (approximate) Purity: La≥99.9% Range of application: element collection, education, gift and so on. Product features Lanthanum is also very susceptible to oxidation. Cut a piece in two to expose virgin metal and its luster will dull over the course of a few days until completely black. That thin coating of oxides is, unfortunately, insufficient to stop further degradation so the cubes must be kept stored under oil to stop the reaction from causing further damage. Except even in oil it will slowly continue to deteriorate unless the lanthanum and oil sit inside an airtight container. And by airtight we mean glass or metal as even plastic allows a limited passage of oxygen through. As is the case with several other reactive metals on this page, we’ve handled the problem effectively by putting the cube inside an ampule with argon which is pretty much the only way you can hold on to this metal in a manner guaranteed to spare its delicate metallic luster while still being able to visually appreciate it.
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