Europium standard , 1000μg/mLin10%HCL , 7440-53-1

Synonym(s):
EU000200;EU005110;EU006010;Europium

CAS NO.：7440-53-1

Empirical Formula: Eu

Molecular Weight: 151.96

MDL number: MFCD00010992

EINECS: 231-161-7

PRODUCT Properties

• Melting point: 822 °C (lit.)
• Boiling point: 1527 °C (lit.)
• Density: 5.24 g/mL at 25 °C (lit.)
• storage temp.: 15-25°C
• solubility: reacts with H2O
• form: ingot
• Specific Gravity: 5.24
• color: Silver/gray
• PH: 0.5 (20°C in H2O)
• Resistivity: 81 μΩ-cm, 20°C
• Water Solubility: Reacts with water.
• Sensitive: Air & Moisture Sensitive
• Merck: 13,3937
• Exposure limits: ACGIH: TWA 2 ppm; STEL 4 ppm; OSHA: TWA 2 ppm(5 mg/m3); NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3)
• InChI: InChI=1S/Eu
• InChIKey: OGPBJKLSAFTDLK-UHFFFAOYSA-N
• SMILES: [Eu]
• Bulk Modulus: 8.30 GPa
• Hardness, Vickers: 17
• Poissons Ratio: 0.152
• Shear Modulus: 7.90 GPa
• CAS DataBase Reference: 7440-53-1(CAS DataBase Reference)
• EPA Substance Registry System: Europium (7440-53-1)

Description and Uses

There are only a few commercial uses for europium. Europium oxide, (Eu₂O₃), a compoundof europium, is added to infra-sensitive phosphors to enhance the red colors on TVand computer-monitor picture tubes. It is also added to fluorescent light tubes to increasetheir efficiency, as well as to some materials to make lasers. Since it is a good neutron absorber,it is part of nuclear reactor control rods. Europium is an additive to the glue used on postagestamps, thus making it possible for the electronic sorting machines in U.S. postal offices to“read” the stamps.

Safety

• Symbol(GHS): GHS02
• Signal word: Danger
• Hazard statements: H250
• Precautionary statements: P222-P231-P422
• Hazard Codes: F,C
• Risk Statements: 14/15-17-34
• Safety Statements: 43-7/8-45-36/37/39-27-26-23
• RIDADR: UN 2813 4.3/PG 2
• WGK Germany: 3
• F: 1-10
• TSCA: Yes
• HazardClass: 4.1
• PackingGroup: II
• HS Code: 28053090