ГЕКСАГИДРАТ ХЛОРИДА ЕВРОПИЯ (III)

Description

Europium(III) chloride hexahydrate is a crystalline hydrate of europium salt and hydrochloric acid, white crystals.

Basic Attributes

• CAS No: 13759-92-7
• Chemical formula: Cl3EuH12O6
• Molecular Weight: 366.41
• Exact weight: 365.891144
• EU number: 233-040-4
• PSA Specifications: 55.38000
• XLogP3: 1.68270

Synonyms

• Europium(III) chloride hydrate
• Europium chloride hexahydrate (+3)
• Europium chloride, europium hexahydrate
• Europium(III) chloride hexahydrate, 99.99% metal based
• Europium(III) Chloride Hexahydrate (99.999%-EC) (REO)

Physico-chemical characteristics

• Appearance: white crystals
• Density: 4.89 g/ml at 25 °C (according to literature data)
• Melting point: 850 °C
• Storage conditions: 0-6 °C

Safety Information

• Transport codes: NONH for all modes of transport
• WGK Germany: 3
• Safety instructions: 24/25
• RTECS number: LE7600000
• Catalog section: inorganic salts

Substance class and application

The crystalline hydrate form of europium trichloride differs from anhydrous salt in storage conditions (0-6 °C) and in the structure of the crystal lattice due to coordinated water molecules. It is used as a water-soluble precursor in the synthesis of luminescent and coordination compounds of europium, including high-purity forms (99.99% for metals) for optical and laser materials.

Europium compounds: general context

Europium is one of the most popular rare earth elements in optoelectronics. Eu3+ ions act as activators of narrow-band red phosphors of displays, cathode ray tubes, lamps and security marks of banknotes, Eu2+ ions act as activators of blue and green phosphors and scintillators. Europium salts, oxides and chalcogenides are also used as precursors for the preparation of other europium compounds by methods of precipitation and thermal decomposition, as shifting reagents for NMR spectroscopy, and as an object for studying the magnetic and optical properties of rare earth materials.

Applications of europium compounds

Europium compounds are the basic raw materials of rare earth chemistry for the production of phosphors: trivalent europium is responsible for the red glow in screens and lamps, divalent europium is responsible for the blue and green glow in lighting and scintillation materials. In addition to phosphors, europium salts and oxides are used as catalysts, components of magnetic and optical materials, analytical chemistry reagents, and an object for research in the inorganic chemistry of f-elements.

Storage and transportation

Store at a temperature of 0-6 °C, in a tightly closed container, in a dry place, since crystalline hydrate is hygroscopic. Transportation without special restrictions (code NONH). When working, use gloves, avoid the formation of dust and contact of the substance with the respiratory tract.