we most humbly introduce ourselves as an official selling and marketing partner for Kazakhstan mines offering Rhenium in APR 69.4% (Ammonium Perrhenate). We are having capabilities to enter into yearly contract with interested buying companiesWe can offer Rhenium in APR (Ammonium perrhenate) Content of Re 69.4% (basic grade) the detail specifications are as under, interested companies, please let us know your requirements, we are looking forward for your inquiry.Compound: Ammonium perrhenate (APR)Rhenium content: 69.4%Form: Dry white free flowing crystal powderCAS number: 13598-65-7Molecular formula: NH4ReO4Molar mass: 268.2359 g/molDensity: 3.97 g/cm� solidGrade: Basic grade, ASIC(Alex Stewart International Corporation) certifiedSynonyms: Ammonium perrhenate(VII); Ammonium rhenate; Ammonium rhenium; Ammonium rhenium oxide.