Specification Sheet
Product Name Ammonium metatungstate hydrate,
≥85% WO3 basis (gravimetric)
Product Number 10035
Product Brand ALDRICH
CAS Number 12333-11-8
Molecular Weight 2956.30 (anhydrous basis)
 
TEST SPECIFICATION
APPEARANCE (COLOR) White to Faint Beige
APPEARANCE (FORM) Powder or Crystals
ASSAY (GRAVIMETR.) ≥ 85% WO3
LOSS ON IGNITION ≤ 15 %
TRACE ANALYSIS (ADDITIONAL TESTS) water-insoluble matter ≤ 0.005 %
RECOMMENDED RETEST PERIOD 72 MONTHS