VIVID - Fluorescent - Red Easy Dispersible
|
General Characteristics
|
Physical Characteristics
|
| Name |
Yttrium Oxide: Eu Fine ED |
Body Colour |
White |
| Chemical Formula |
Y2O3:Eu |
Specific Gravity |
5.00 |
| Application |
Red component tri-band phosphor mix for high colour rendering fluorescent lamps (RA>80) |
Particle Size Distribution |
By Laser Diffraction (Sympatec - HELOS) |
| Processing |
Stirrer |
» fraction £ 1.8 µm |
9.0 ± 4% |
| Suspension Type |
Butyl acetate or Water |
» fraction £ 6.0 µm |
60.0 ± 15% |
| Packaging |
35 kg in 50 ltr steel drum |
» fraction £ 12.5 µm |
³ 95.0% |
| |
|
» fraction £ 25.0 µm |
³ 100.0% |
| |
|
Crystal Structure |
Bixbyite |
|
Optical Characteristics of Fluorescent - Red Easy Dispersible
|
|
—————— 254 nm excitation ——————
|
—————— C.I.E. Chromaticity Coordinates ——————
|
| » Quantum efficiency |
84% |
» Powder |
x = 0.643 Y = 0.344 |
| » UV absorption |
84% |
» Lamp TLD 36W |
x = 0.576 Y = 0.326 |
| » Wavelength at peak |
613 nm |
|
|
| » Bandwidth (50%) |
3 nm |
—————— Lumen Output 100h TLD (36W) —————— |
| » Excitation peak |
203 nm |
» Nominal |
2568 lm |
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