Density(g/cm3) 3.67
Melting Point (K) 924
Thermal expansion coefficient (K-1) 47.4 x 10-6
Hardness (Mho) 2
Hygroscopic Yes
Wavelength of Emission Maximum (nm) 420
Refractive Index at Emission Maximum 1.85
Primary Decay Time(ns) 250
Temperature Coefficient of Light Yield 0.3% K-¹
Light Yield (photons/keV) 38