Description
Lutetium(III) oxide is a high-purity rare-earth oxide supplied in the ROTI®METIC 99,995 % (4N₅) grade for demanding laboratory and materials work. With CAS number 12032-20-1 and empirical formula Lu₂O₃, it has a molar mass of 397,93 g/mol and a density of 9,41 g/cm³. The boiling point is given as 3980 °C, underscoring its thermal stability in high-temperature processes. This inorganic oxide is offered in a 1 g plastic pack, suited to analytical preparation, specialty ceramics research, and controlled doping studies where low impurity levels matter. The material is available from manufacturer Carl ROTH as part of the ROTI®METIC range, which targets applications that require tightly specified rare-earth reagents. EG number 234-764-3 further identifies the substance for regulatory and inventory purposes. Laboratories working with lanthanide oxides will find this compact pack practical for method development, reference preparations, and small-scale synthesis without excess inventory.
This article is part of Metals, elements & oxides, in Inorganic chemicals.
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Questions about Lutetium(III) oxide, ROTI®METIC 99,995 % (4N5), 1 g, plastic
What is this article?
Lutetium(III) oxide, ROTI®METIC 99,995 % (4N5), 1 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Metals, elements & oxides, inside Inorganic chemicals, in Lab chemicals.
Metals, elements and oxides are the element itself or its oxide, sold as powder, shot, foil or wire. Purity and particle size are both the specification. A 99 percent powder and a 99.999 percent shot of the same element are different articles. Many are reactive to air or to water.
An inorganic chemical is a salt, an acid or base in solid form, a metal, an oxide, or an element. The waters of hydration are part of the formula: a hydrate and an anhydrous salt are different masses for the same ion. Trace metals matter when the salt will be used in analysis. Nanomaterials add particle size to the specification. Look the substance up on PubChem. Hazard classes are on ECHA, under the CLP Regulation and REACH. Transport of the dangerous ones is explained by the UNECE.
Which category should I open next?
The category is Inorganic chemicals. The sub-category is Metals, elements & oxides. The catalogue is Lab chemicals.
Shelves beside this one are Inorganic salts and Nanomaterials & quantum dots.
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When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

