Phospho tungstic acid Here are the specificaton for our manufactured phospho tungstic acid: all grades. -mw max 6628 -loss on ignition at 750 max 17% -insoluble matter max0.01% -fe max0.02% -cl max0.01% -so 4 max0.01% -nitrogen max0.05% -pb max0.005% -cu max0.001% Mainimum 5 to 10 kgs in plastic jar pack
