Ammonium Molybdate Reagent II (Certified) for Phosphorus Determination by the Stannous Chloride Method (with extraction) CAS Number 7732-18-5 7664-93-9 12054-85-2 APHA 4500-P D Chemical Container Material Plastic Chemical Container Type Bottle Chemical Grade ACS Chemical Container Size 1L Chemical Family Type Standards and Solutions Shelf Life 18 mo.