Formula: K₂S₂O₈ Formula Weight: 270.32 CAS Number: 7727-21-1 Synonym(s): (potassium peroxydisulfate) Description: Suitable for Kjeldahl Nitrogen, Phosphate, and Mercury Determinations

For Trace Metal Analysis Formula: HNO₃ Formula Weight: 63.01 CAS Number: 7697-37-2

For Infrared Analysis Formula: KBr Formula Weight: 118.99 CAS Number: 7758-02-3