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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.
An example SDS, including guidance for handling a hazardous substance and information on its composition and properties. A safety data sheet (SDS), [1] material safety data sheet (MSDS), or product safety data sheet (PSDS) is a document that lists information relating to occupational safety and health for the use of various substances and products.
Holmium(III) oxide, or holmium oxide is a chemical compound of the rare-earth element holmium and oxygen with the formula Ho 2 O 3. Together with dysprosium(III) oxide (Dy 2 O 3), holmium oxide is one of the most powerfully paramagnetic substances known. The oxide, also called holmia, occurs as a component of the related erbium oxide mineral ...
Lanthanum(III) nitrate is any inorganic compound with the chemical formula La(NO 3) 3 ·xH 2 O. It is used in the extraction and purification of lanthanum from its ores. [5] The compound decomposes at 499°C to lanthanum oxide, nitric oxide and oxygen. [3]
Lanthanum hydroxide can be obtained by adding an alkali such as ammonia to aqueous solutions of lanthanum salts such as lanthanum nitrate. This produces a gel-like precipitate that can then be dried in air. [2] La(NO 3) 3 + 3 NH 4 OH → La(OH) 3 + 3 NH 4 NO 3. Alternatively, it can be produced by hydration reaction (addition of water) to ...
Lanthanum oxide is also used as a grain-growth additive during the liquid-phase sintering of silicon nitride and zirconium diboride. [ 65 ] Small amounts of lanthanum added to steel improves its malleability , resistance to impact, and ductility , whereas addition of lanthanum to molybdenum decreases its hardness and sensitivity to temperature ...
Calcination of lanthanum(III) sulfate in oxygen current at 750 °C: [4] La 2 (SO 4) 3 + O 2 → La 2 O 3 ·SO 3 + 2SO 3. The resulting product is reduced with hydrogen when heated: La 2 O 3 ·SO 3 + 4H 2 → La 2 O 2 S + 4H 2 O
LSAT is the most common name for the inorganic compound lanthanum aluminate - strontium aluminium tantalate, which has the chemical formula (LaAlO 3) 0.3 (Sr 2 TaAlO 6) 0.7 or its less common alternative: (La 0.18 Sr 0.82)(Al 0.59 Ta 0.41)O 3. LSAT is a hard, optically transparent oxide of the elements lanthanum, aluminium, strontium and tantalum.
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