nematic liquid crystal E7 Qingdao QY Liquid Crystal Co., Ltd. is a professional manufacturer and exporter of liquid crystal material, liquid crystal monomer,liquid crystal intermediate LC MIXTURE QYPDLC-16022A Lower Operating Temperature Tkn(C) -20 Upper Operating Temperature Tni(C) 101 Viscosity (mm2s-1,20℃) 38 Birefringence(589nm,20C) 0.25 Ordinary Refractive Index (No)(589nm,20C) 1.5245 67284-56-4 80944-44-1 84540-32-9 81936-32-5 86776-50-3 86776-52-5 86776-51-4 86786-89-2 67589-39-3 67589-38-2 67589-47-3 67589-52-0 67589-53-1 82380-18-5 133059-44-6 127655-35-0