This document specifies the technical requirements, testing, inspection rules, packaging and marking of the chemical reagent manganese sulfate monohydrate (manganese sulfate). This document applies to the inspection of the chemical reagent manganese sulfate monohydrate (manganese sulfate). Molecular formula: MnSO,. , Relative molecular mass of H2O: 169.01 (according to the international relative atomic mass in 2018) CAS number: 10034-96-5