in carbon disulfide byproducts: Se6S2, 1,4-Se4S2; decomposition of Se5S in carbondisulfide at 20°C with exclusion of light over several days; HPLC, NMR;

in carbon disulfide byproducts: Se6S2, 1,4-Se4S2; decomposition of Se5S in carbondisulfide at 20°C with exclusion of light over several days; HPLC, NMR;