Physical and Chemical Properties:
Calcium tungstate is white powder with tetragonal structure. Its relative density is 6.062. Slightly soluble in water and ammonium chloride solution. Dissociation in hydrochloric.
Calcium tungstate is self-activation phosphors, very efficient light-emitting material in X-rays, electron beams and UV excitation. It gives out blue fluorescence at 253.7nm ultraviolet light, emission spectrum peak wavelength of 423nm, half the width of 120nm. It emits blue light, the anode voltage 3kV, the peak wavelength of 415nm, luminous efficiency of 851m/W cathode ray excitation.