Sulphuric Acid Phosphoric Acids Phospho Gypsum Hydro Fluo Silicic Acid Ferro Sand Sulphuric Acid Chemical Properties   Contents   Value   H2SO4 98.0%   Residue on Ignition 0.200%   Iron 0.050%   Lead 0.005%   Physical Properties Contents   Element Specific Gravity 1.84 Colour Colourless         Phosphoric Acid Phosphoric Acid ( 54% Concentration) Chemical Properties   Contents   Value   P2O5 52-55%   Fe2O3 0.6%   AL2O3 0.5%   CaO 0.2%   Fluorides as F 1.0%   Suspended Solids 1.0%   Chlorides as Cl 200ppm   Sulphate as SO4 3.5%   Magnesium as MgO 0.8%           Physical Properties Contents   Element Specific Gravity 1.63-1.70 Colour Darkish Green Phosphoric Acid (43% Concentration) Chemical Properties   Contents   Value   P2O5 40-43%   Fe2O3 1.0%   AI2O3 0.5%   CaO 0.2%   Fluorides as F 1.0%   Suspended Solids 1.5%   Chlorides as Cl 200ppm   Sulphate as SO4 3.5%   Magnesium as MgO 1.0%   Physical Properties Contents   Element Specific Gravity 1.43-1.47 Colour Darkish Green         Phospho Gypsum Chemical Properties   Contents   Value   Purity 90-95%   Total P2O5 0.25-0.40%   Water Soluble P2O5 0.1-0.15%   Silica 1.00-1.9%   AI2O3 0.1 max   MgO 0.6 max ppm   Water of Crystallisation 18.5-19.5 % at 250oC   Uncombined Moisture 8-10%   Ph OF 1% Solution 3-3.5   Fe2O3 0.02 max   Chloride as NaCl 0.002 max   Na2O 0.01 max   K2O 0.01 max   Loss on ignition at 1000 o C 24% (max) Physical Properties Sieve Analysis     Contents   Element + 300 mesh 49.00 + 200 mesh 31.12 + 100 mesh 10.52 -100 mesh 9.36 Colour Colourless         Hydro Fluo Silicic Acid Chemical Properties   Contents   Value   H2SiF6 18-24%   P2O5 200-1000ppm   Fe2O3 20-50ppm   SO4 10-25ppm   Cl 20-50ppm   Physical Properties Sieve Analysis     Contents   Element Specific Gravity 1.18 Colour Colourless         Ferro Sand Chemical Properties   Iron   Value   Iron 40 - 48%   Silica 27 - 33%   Calcium Oxide 1.0 - 3.5%   Sulphur 0.2 - 1.5%   Copper <0.5%   Aluminium Oxide <3.0%   Fe3SO4 <10.0%   Physical Properties Sieve Analysis       Contents   Value   >3.35 1 - 4%   >3.35- 2.00 8 - 17%   2.00 - 1.00 35 - 43%   1.00 - 0.50 25 - 33%   <0.300 0.75- 3.0%   Colour Black

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