Use: Mainly applied to LCD ( Liquid crystal Display), optical glass, fireworks, signal flare, flame tube, match, kinescope Item Index (%) Liquid Crystal Grade Industrial GradeSr(NO3)2 ... .1Water insoluble matter≤0.050.1Use: Mainly applied to LCD ( Liquid crystal Display), optical glass, fireworks, signal flare, flame tube, match, kinescope, and ...