Ferric Alum

We are offering ferric alum
alumino ferric( ferric alum) is widely used in paper industries for glazing purpose & water-treatment industries for treatment purpose.
Most of our material is being used in government treatment plant
specifications
insoluble matter percent by mass, max.: 0.5
soluble iron compounds, percent by mass max.: 0.7
water soluble aluminium compounds(as al2o3:), percent by mass, max.: 16.0
ph( of 5% aqueous solution), min.: 2.7
basicity (as al2o3:), percent by mass, max.: 0.5
lead as (pb), parts per million, max.: 30
arsenic ( as al2o3:), parts per million max.: 6
grain size may be in 25 - 30 kg lumps or in packing as per order