Zur Frage des Verlustes von Molybdän während der Analyse von metallischem Wolfram auf Molybdänspuren.
It is shown that oxidative ignition of metallic tungsten to tungsten trioxide causes a decrease in the molybdenum content. Thus the ignition cannot be used when the molybdenum content is to be determined. On the other hand, when the tungsten is dissolved in a mixture of hydrofluoric and nitric acids with subsequent fuming with sulphuric acid, no such decrease in the molybdenum content takes place.
Lassner
E
E
Versuchsanstalt Metallwerk Plansee A.G. A-6600 Reutte, Austria.
Schedle
H
H