in hydrogen bromide oxide dissoln. in dil HBr (1:3), soln. evapn. until crystn. occured; crystals sepn. from mother liquor, drying (vac. desiccator, over CaCl2, P2O5 and alkali) to const. mass;
参考文献
Agarwal, R. K.; Kumar, Pravesh
Journal of the Indian Chemical Society, 1988 , vol. 65, p. 450 - 451