Lanthanum in a sentence

As engineers push the technology to increase fuel efficiency, twice that amount of lanthanum could be required per vehicle. citation citation * Hydrogen sponge alloys can contain lanthanum.

Due to high cost to extract the other lanthanides, a mischmetal with more than 50% of lanthanum is used instead of pure lanthanum.

Lanthanum was first found by the Swedish chemist Carl Gustav Mosander in 1839 as an impurity in cerium nitrate – hence the name lanthanum, from the Ancient Greek λανθάνειν (lanthanein), meaning "to lie hidden".

This arrangement, in which lanthanum is the first member of the f-block, is disputed by some authors since lanthanum lacks any f-electrons.

Whereas lanthanum oxyfluoride can be easily obtained by burning lanthanum trifluoride in air at 800 °C for an hour, similar treatment of actinium trifluoride yields no AcOF and only results in melting of the initial product.

Further tests on the grey "resin" adhesives, the "none-aerodynamic green paint" found on the Aluminum, the "strange green rubber honeycomb coating" over the Lanthanum were inconclusive, whole the "honeycombed metal foil" was not analysed.

OLC is a next-generation lanthanum-based phosphate binding agent utilizing proprietary nanoparticle technology being developed for the treatment of hyperphosphatemia in patients with chronic kidney disease (CKD).

Exports of lanthanum oxide stood at 966 tonnes in July, the customs data showed.

In this new research, the team utilised lanthanum iron oxide to create a semiconducting material that gave the ideal results for the production of hydrogen from water using sunlight, making it the strongest candidate yet for renewable hydrogen generation.

Accordingly, lutetium rather than lanthanum was assigned to group 3 by some chemists in the 1920s and 30s.

At 310 °C, lanthanum changes to a face-centered cubic structure, and at 865 °C, it changes to a body-centered cubic structure.

At the time of his formulation in 1871, Mendeleev believed that the elements were ordered by their atomic masses and placed lanthanum (element 57) in the spot below zirconium.

A typical hybrid automobile battery for a Toyota Prius requires convert of lanthanum.

Golub, p. 213 citation Owing to the close similarity of actinium and lanthanum and low abundance, pure actinium could only be produced in 1950.

Holmium is used in yttrium- iron garnet (YIG)- and yttrium- lanthanum -fluoride (YLF) solid-state lasers found in microwave equipment (which are in turn found in a variety of medical and dental settings).

However, this position has sometimes been disputed, on the grounds that yttrium and to a lesser extent scandium are closer in their chemical properties to lutetium than lanthanum.

It was soon found that replacing the lanthanum with yttrium (i.

Lanthanide oxides: clockwise from top center: praseodymium, cerium, lanthanum, neodymium, samarium and gadolinium.

Lanthanum chemistry tends not to involve π bonding due to the electron configuration of the element: thus its organometallic chemistry is quite limited.

Lanthanum has a relatively high resistivity of 615 nΩm at room temperature; in comparison, the value for the good conductor aluminium is only 26.50 nΩm.