VIVID - Fluorescent - Coarse YOX
General Characteristics
|
Physical Characteristics
|
Name |
Yttrium Oxide:Eu Coarse |
Body Colour |
White |
Chemical Formula |
Y2O3:Eu |
Specific Gravity |
5.00 |
Application |
Red component triband phosphor mix for compact fluorescent lamps (CFL) |
Particle Size Distribution |
By Laser Diffraction (Sympatec - HELOS) |
Processing |
Stirrer or Ball Mill |
» fraction £ 1.8 µm |
£ 6.0% |
Suspension Type |
Butyl acetate or Water |
» fraction £ 12.5 µm |
55.0 ± 12% |
Packaging |
35 kg in 50 ltr steel drum |
» fraction £ 25.0 µm |
³ 90.0% |
|
|
Crystal Structure |
Bixbyite |
Optical Characteristics of Fluorescent - Coarse YOX
|
—————— 254 nm excitation ——————
|
—————— C.I.E. Chromaticity Coordinates ——————
|
» Quantum efficiency |
84% |
» Powder |
x = 0.643 Y = 0.344 |
» UV absorption |
81% |
» Lamp TLD 36W |
x = 0.575 Y = 0.326 |
» Wavelength at peak |
612 nm |
|
|
» Bandwidth (50%) |
2 nm |
—————— Lumen Output 100h TLD (36W) —————— |
» Excitation peak |
233 nm |
» Nominal |
2574 lm |