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The material shall be indented for use as a mordant in the dyeing of textiles and as a loading material for better grades of paper.
The material shall be white powder, granules, lumps or slabs, free from visible impurities and almost entirely soluble in water.
REQUIREMENT FOR ALUMIINIUM SULPHAE, NON–FERRIC
S NO. CHARACTERISTIC REQUIREMENT
TECH
i) Insoluble matter, percent by weight, max 0.30
ii) pH (of 5 percent solution) not less than 2.8
iii) Heavy metals (as Pb), parts per million, Max –
iv) Iron (as Fe), Percent by weight, Max 0.01
v) Chlorides –
vi) Arsenic (as As2o3) parts per million, Max –
vii) Ammonium salts, (as NH3), percent by weight, Max –
viii) Aluminium (as Al2O3) percent by weight 17.00 (min)
Ix) Sodium (as NA), percent by weight, Max –
x) Potassium (as K), percent by weight, Max –
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