Merck, 1122200500, Lanthanum(III) oxide
Size:500 g, Lanthanum(III) oxide, EMPLURA®
Catalog Number: 1122200500
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Pack Size500 g
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| UNSPSC Code | 12352303 |
|---|---|
| EC Index Number | 215-200-5 |
| NACRES | NA.21 |
| MDL number | MFCD00011071 |
| SMILES string | [La+3].[La+3].[O-2].[O-2].[O-2] |
| InChI | 1S/2La.3O/q2*+3;3*-2 |
| InChI key | MRELNEQAGSRDBK-UHFFFAOYSA-N |
| product line | EMPLURA® |
| assay | ≥99.5% (the ignited basis substance, complexometric) |
| form | solid |
| potency | >9968 mg/kg LD50, oral (Rat) |
| pH | 9.0 (20 °C, 50 g/L in H2O, slurry) |
| mp | 2315 °C |
| density | 6.51 g/cm3 at 20 °C |
| bulk density | 1300 kg/m3 |
| storage temp. | no temp limit |
| Quality Level | 200 |
Answer:La₂O₃, lanthanum(III) oxide.
Answer:At least 99.5% on the ignited-basis substance.
Answer:500 g of EMPLURA-grade lanthanum(III) oxide.
Merck Supelco lanthanum(III) oxide is an EMPLURA-grade inorganic oxide supplied as a solid powder with an assay of at least 99.5% on the ignited basis. The compound has the empirical formula La₂O₃ and is used as a lanthanum source in inorganic synthesis, ceramic material development and related research requiring a defined rare-earth oxide reagent. Its high melting point and alkaline oxide behavior influence how it is selected for solid-state and materials experiments. Because lanthanum oxide can interact with moisture and atmospheric carbon dioxide, its condition and handling history can affect mass-based calculations and subsequent material preparation. The assay is based on the ignited substance, a distinction that matters when comparing alternative purity specifications. The supplied 500 g HDPE bottle contains the raw oxide, not a certified lanthanum calibration solution, finished catalyst or fabricated ceramic component. Users should follow the relevant laboratory safety and material-characterization procedures and confirm that the EMPLURA grade meets their analytical needs.
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