Magnesia sticks are white sticks 10 to 15 cm long made of pressed magnesium oxide . They are heat-resistant (melting point approx. 2800 ° C) and are used as a substitute for platinum wire in the qualitative inorganic preliminary sample analysis for flame coloration, e.g. for borax pearls , since they themselves have no influence on the color of the flame.
Magnesia stick with 1 € coin for size comparison
Magnesia sticks with lithium salt
Individual evidence
↑ Gerhard Meyendorf: laboratory equipment and chemicals , people and knowledge Volkseigener Verlag Berlin, 1965, p. 39.
↑ S. Ebel and HJ Roth (editors): Lexikon der Pharmazie , Georg Thieme Verlag, 1987, p. 409, ISBN 3-13-672201-9 .
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