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. . 1,78, . n 1,82 1,83 , S, SnI4 SbI3. n 1,782,06 (D = 1,78) (D 2,06), 80% , 10% S 10% . AsBr3, As3S2 S nD= 2,02. As2S2 AsBr3 nD = 2,11 ( ).





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