Merck, 1122190250, Lanthanum(III) chloride heptahydrate 98%
Size:250 g, Lanthanum(III) chloride heptahydrate 98%, Lanthanum trichloride, for analysis
Catalog Number: 1122190250
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Pack Size250 g
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| UNSPSC Code | 12352302 |
|---|---|
| EC Index Number | 233-237-5 |
| NACRES | NB.21 |
| Web Name Override | Lanthanum(III) chloride heptahydrate |
| Web Name Suffix Override | 98%, for analysis |
| MDL number | MFCD00149756 |
| SMILES string | [La](Cl)(Cl)Cl.O.O.O.O.O.O.O |
| InChI | 1S/3ClH.La.7H2O/h3*1H;;7*1H2/q;;;+3;;;;;;;/p-3 |
| InChI key | FDFPDGIMPRFRJP-UHFFFAOYSA-K |
| description | for inorganic trace analysis |
| assay | 98% |
| form | solid |
| potency | 4184 mg/kg LD50, oral (Rat) |
| pH | 5 (25 °C, 100 g/L in H2O) |
| mp | 91 °C (Elimination of water of crystallisation) |
| bulk density | 900 kg/m3 |
| storage temp. | no temp limit |
| Quality Level | 100 |
Answer:The package contains 250 g of lanthanum(III) chloride heptahydrate at 98% purity, designated for analysis.
Answer:No. It is the heptahydrate LaCl3·7H2O, with a molar mass of 371.37 g/mol.
Answer:No. A prepared reagent solution is not inherently a certified concentration standard; calibration requires appropriate reference materials and method validation.
Merck Supelco lanthanum(III) chloride heptahydrate is a 98% analytical-grade rare-earth metal salt supplied in a 250 g package. The hydrated chloride has the composition LaCl3·7H2O, CAS 10025-84-0 and a formula mass of 371.37 g/mol. It supplies trivalent lanthanum ions for analytical reagent preparation, inorganic chemistry and methods in which lanthanum compounds act as chemical modifiers or releasing agents. In selected atomic absorption workflows, lanthanum-containing solutions can help reduce chemical interferences, but the amount and matrix requirements must follow the validated element-specific method. Prepare stock solutions using suitable clean vessels and verified water quality; record the actual weighed mass and preparation volume rather than assuming the material is an anhydrous chloride. Protect the reagent from contamination and moisture, and use the concentration calculation appropriate to the heptahydrate formula. Consult the safety data sheet before handling or disposing of solutions because the reagent has chemical handling hazards. It is a laboratory chemical, not a calibrated elemental reference standard.
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