Ammonium Perrhenate

Appearance: White crystal granule or powderApplication: Used for manufacturing platinum rhenium reforming catalysts in petrochemical industry, and pure rhenium metal powder or as an in rhenium alloys. Used as a raw material for other rhenium compounds or composite material.5N ultra high purity ammonium perrhenate can be used for standard solution of rhenium.Particle size: Irregular crystal granule , can be customized as per special requirement.Chemical Specification: High purity 4N grade : NH4ReO4≥99.99%, Re≥69.4%                     Ultra purity 5N grade: NH4ReO4≥99.999%，Re≥69.41%