Chemicals

Specifications

Assay Min 97.0 % Sulfate (So4) Max 0.01 % Arsenic (As) Max 0.0002 % Iron (Fe) Max 0.01 % Appearance Colourless crystals

Specifications

Assay (acidimetric) 98.5-100.5% pH (5% sol in water) 9.0-9.3 Chloride (Cl) Max 0.01% Sulfate (SO4) Max 0.01% Sodium dihydrogen phosphate (NaH2PO4) Max 1% Heavy metal (as Pb) Max 0.001% Iron (Fe) Max 0.001% Arsenic (As) Max 0.0001% Substance reducing KMnO4 (as O) Max 0.02% Loss on drying (at 130°C) 57-61% Water (by KF) 57-61%

Specifications

Assay (iodometric) 99.5-101.0 % Insoluble matter (10% in water) Max 0.005 % pH (5% sol in water; 25°C) 6.0-8.4 Nitrogen compounds (as N) Max 0.002 % Chloride (Cl) Max 0.02 % Heavy metal (as Pb) Max 0.001 % Sulphate and sulphite (as SO4) Max 0.1 % Sulphide (S) Passes test Appearance Large, colourless crystals or coarse crystalline powder

Specifications

Assay (iodometric) Min 98 % Insoluble matter in water Max 0.005 % Chloride (Cl) Max 0.02 % Iron (Fe) Max 0.0005 % Heavy metal (as Pb) Max 0.001 % Acidity Passes test Alkalinity Max 0.03 meq/g Appearance White crystalline powder

Specifications

Assay (by HClO4 titration) Min 99.5 % pH (5% solution in water; 25°C) 7.0 - 9.0 Chloride (Cl) Max 0.01 % Sulfate (SO4) Max 0.05 % Iron (Fe) Max 0.004 % Heavy metal (as Pb) Max 0.002 % Appearance White crystalline powder

Specifications

Assay (on dried basis) Min 99.5 % pH (5% sodlution) 6.0 - 9.0 Insoluble matter Max 0.01 % Loss on drying (at 105°C) Max 0.5 % Iron (Fe) Max 0.0005 % Chloride & bromide (Cl) Max 0.01 % Iodate (IO3) Max 0.0003 % Sulphate (SO4) Max 0.005 % Calcium (Ca) Max 0.002 %

Specifications

Assay (ex Hg) % Min 98 Residue after reduction % Max 0.05 Chloride (Cl) % Max 0.005 Sulfate (SO4) % Max 0.01 Iron (Fe) % Max 0.005 Potassium (K) % Max 0.01 Sodium (Na) % Max 0.01

Specifications

Assay Min 99 % Iron (Fe) Max 0.05 % Substances insoluble in HCl Max 0.05 % Appearance Silvery white metal powder Magnesium metal powder 45 μm / 325 mesh / 0.045 mm

Specifications

Assay (by complexometry, as MgO) % 40 - 50 Substances soluble in water % Max 1 Substances insoluble in acetic acid % Max 0.05 Chloride (Cl) % Max 0.125 Sulfate (SO4) % Max 0.3 Heavy metals (as Pb) % Max 0.002 Arsenic (As) % Max 0.0002 Calcium (Ca) % Max 0.75 Iron (Fe) % Max 0.04

Specifications

Assay Min. 99.0% Assay (as MoO3) 81.0 – 83.0% Insoluble matter Max.0.005% Chloride (Cl) Max.0.002% Arsenate phosphate, silicate (PO4) Max.0.001% Nitrate (NO3) Max.0.003% Sulfate (SO4) Max.0.02% Copper (Cu) Max.0.001% Iron (Fe) Max.0.001% Lead (Pb) Max.0.001% Phosphate (PO4) Max. 0.0005% Heavy metals (as Pb) Max. 0.001% Magnesium (Mg) Max. 0.005% Sodium (Na) Max. 0.01% Potassium (K) Max. 0.01%

Specifications

Substance insoluble in Max 0.01 % water Chloride (Cl) Max 0.01 % Sulphate (SO4) Max 0.01 % Total nitrogen (N) Max 0.005 % Lead (Pb) Max 0.005 % Iron (Fe) Max 0.002 % Copper (Cu) Max 0.001 % Loss on ignition (at 750°C) Max 17 %

Specifications

Assay (Acidimetric) % 39 - 43 Wt. Per ml at 20°C About 1.13 g Non volatile matter % Max 0.04 Fluorosilicate (SiF6) % Max 1 Sulfate (SO4) % Max 0.04 Iron (Fe) % Max 0.003 Lead (pb) % Max 0.003

Specifications

Assay Min 99.9 % Acidity/alkalinity (meq/g) Max 0.0002 Colour APHA Max 10 Calcium (Ca) Max 0.0001 % Copper (Cu) Max 0.000005 % Iron (Fe) Max 0.00005 % Lead (Pb) Max 0.000002 % Magnesium (Mg) Max 0.000005 % Potassium (K) Max 0.00005 % Residue after evaporation (ppm) Max 50

Specifications

Assay % 99.5 - 100.5 pH (2% solution) 5.5 - 8.5 Insoluble matter % Max 0.01 Bromide (Br) % Max 0.01 Iodide (I) % Max 0.002 Sulfate (SO4) % Max 0.005 Phosphate (PO4) % Max 0.005 Total Nitrogen (N) % Max 0.001 Heavy metals (as Pb) % Max 0.0005 Iron (Fe) % Max 0.0003 Calcium (Ca) % Max 0.002 Barium (Ba) % Max 0.001 Magnesium (Mg) % Max 0.001 Sodium (Na) % Max 0.02 Loss on drying (at 130°C) Max 0.2