Lantanum (III) Chloride Heptahydrate - LaCl3 x 7H2O - [CAS: 10025-84-0] - 50g

Lanthanum(III) Chloride Heptahydrate
Other Names: Lanthanum chloride hydrate, LaCl₃·7H₂O
CAS Number: 10025-84-0
Sum Formula: LaCl₃·7H₂O
Molar Mass: 371.37 g/mol
Appearance: White to slightly off-white crystalline solid, hygroscopic

Lanthanum(III) chloride heptahydrate is a hydrated rare-earth metal salt used primarily in chemical synthesis, materials science, and as a precursor for lanthanum-containing compounds. It dissolves readily in water, forming clear, slightly acidic solutions.

Chemical and Physical Properties

• Density: ~2.4 g/cm³

• Melting Point: Decomposes before melting

• Boiling Point: Not applicable (hydrates decompose)

• Solubility in Water: Highly soluble

• Solubility in Other Solvents: Soluble in ethanol and methanol

• Odor: Odorless

• pH (aqueous solution): Slightly acidic

Applications

• Materials Science: Precursor for the synthesis of lanthanum-based ceramics, catalysts, and high-temperature superconductors.

• Organic Synthesis: Used as a Lewis acid in various catalytic transformations.

• Analytical Chemistry: Employed in the preparation of lanthanide standards and as a reagent in spectroscopic analysis.

• Optics and Electronics: Involved in the manufacture of specialty glasses and phosphors for lighting and displays.

Safety

Signal Word: Warning

Hazard Statements:

H290: May be corrosive to metals

H317: May cause an allergic skin reaction

H318: Causes serious eye damage

H411: Toxic to aquatic life with long lasting effects

Precautionary Statements:

• P261: Avoid breathing dust.

• P264: Wash hands thoroughly after handling.

• P280: Wear protective gloves/protective clothing/eye protection.

• P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.

Handling and Storage

• Storage Conditions: Store in a tightly sealed container in a cool, dry place. Protect from moisture.

• Handling Precautions: Avoid dust formation. Use proper personal protective equipment and work in a well-ventilated area.