VIVID - Willemite: Special Colour Neon
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General Characteristics
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Physical Characteristics
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| Name |
Zinc Silicate:Mn |
Body Colour |
White |
| Chemical Formula |
Zn2SiO4:Mn |
Specific Gravity |
3.90 |
| Application |
Special Colour Fluorescent Lamps, Neon Lamps |
Particle Size Distribution |
By Laser Diffraction (Sympatec - HELOS) |
| Processing |
Stirrer or Ball mill |
» fraction £ 1.8 µm |
£ 25.0% |
| Suspension Type |
Butyl acetate |
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| Packaging |
45 kg in 50 ltr steel drum |
Crystal Structure |
Willemite |
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Optical Characteristics of Willemite: Special Colour Neon
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—————— 254 nm excitation ——————
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—————— C.I.E. Chromaticity Coordinates ——————
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| » Quantum efficiency |
77% |
» Powder |
x = 0.256 Y = 0.698 |
| » UV absorption |
91% |
» Lamp TLD 36W |
x = 0.244 Y = 0.620 |
| » Wavelength at peak |
531 nm |
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| » Bandwidth (50%) |
41 nm |
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| » Excitation peak |
203 nm |
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