Certificate Of Analysis
Product Name Potassium tetraborate tetrahydrate,
99%
Product Number 289795
Product Brand ALDRICH
CAS Number 12045-78-2
Molecular Formula K2B4O7 · 4H2O
Molecular Weight 305.50
 
TEST SPECIFICATION LOT 03704TO RESULTS
APPEARANCE WHITE POWDER, CRYSTALLINE POWDER OR GRANULAR WHITE CRYSTALLINE POWDER
TITRATION 98.5% - 101.5% (13.9% - 14.4% B) (WITH NAOH) 100.5% (WITH NAOH)
ICP ASSAY CONFIRMS POTASSIUM AND BORON COMPONENTS. CONFIRMS BORON AND POTASSIUM COMPONENTS
QUALITY CONTROL DECEMBER, 2001