Part Time Accounting Assistant. Accounting Now has an exciting opportunity with a Manufacturing firm in the Northwest suburbs. Our client is looking to add a Part Time Accounting Assistant to their team and ready to start someone quickly! The chosen candidate will demonstrate entry leve.
Lanthanum is considered a rare earth metal because the process to mine it is difficult, time-consuming and expensive. Lanthanum is rarely the dominant lanthanide found in the rare earth minerals, and in their chemical formulae it is usually preceded by cerium. Rare examples of La-dominant minerals are monazite-(La) and lanthanite-(La).
1 Small amounts of lanthanum added to molybdenum decreases the hardness of this metal and its sensitivity to temperature variations. 2  Mischmetal, a pyrophoric alloy used e.g. in lighter flints, contains 25% to 45% lanthanum. Small amounts of lanthanum added to iron helps to produce nodular cast iron. 2  Small amounts of lanthanum added to molybdenum decreases the hardness of this metal and its sensitivity to temperature variations. 3  Mischmetal, a pyrophoric alloy used e.g. in lighter flints, contains 25% to 45% lanthanum.