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).
Lanthanum is often a component of hydrogen sponge alloys--metals that can absorb and store up to 400 times their own volume of hydrogen gas.These alloys are most commonly used as the negative electrode of nickel-metal hydride (NiMH) batteries.wedish chemist Carl Gustav Mosander discovered lanthanum during experiments on an impure sample of cerium nitrate in 1839. Like most of the rare-earth elements, lanthanum is used in small amounts to alter key properties of other materials.