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Lanthanum(III) oxide, also known as lanthana, chemical formula La 2 O 3, is an inorganic compound containing the rare earth element lanthanum and oxygen. It is used in some ferroelectric materials, as a component of optical materials, and is a feedstock for certain catalysts, among other uses.
Lanthanum(III) oxide (La 2 O 3) improves the alkali resistance of glass and is used in making special optical glasses, such as infrared-absorbing glass, as well as camera and telescope lenses, because of the high refractive index and low dispersion of rare-earth glasses. [29]
Lanthanum(III) sulfide is a binary inorganic chemical compound of lanthanum metal and sulfur with the chemical formula La 2 S 3. [2] [3] Synthesis.
Lanthanum(III) sulfate is an inorganic compound with the formula La 2 (SO 4) 3 ·xH 2 O (0 ≥ x ≥ 9). It forms various hydrates, the most common one being the nonahydrate, which are all white solids.
Lanthanum chloride is the inorganic compound with the formula La Cl 3. ... Anhydrous lanthanum(III) chloride can be produced by the ammonium chloride route. [3] [4 ...
Lanthanum(III) telluride is an inorganic compound, one of the tellurides of lanthanum, with the chemical formula La 2 Te 3. Lanthanum(III) telluride is prepared by oxidizing a mixture of lanthanum , tellurium and sodium carbonate at 400 °C. [ 1 ]
Lanthanum(III) iodate is an inorganic compound with the chemical formula La(IO 3) 3. Preparation. Lanthanum(III) iodate can be obtained by reacting a La 3+ salt with ...
Lanthanum(III) bromide (LaBr 3) is an inorganic halide salt of lanthanum. When pure, it is a colorless white powder. The single crystals of LaBr 3 are hexagonal crystals with melting point of 783 °C. It is highly hygroscopic and water-soluble. There are several hydrates, La 3 Br·x H 2 O, of the salt also known. It is often used as a source of ...