Reagents

Specifications

Assay (by GC) Min. 98 % Acidity/alkalinity (meq/g) Max 0.00001 % Benzene Max 0.05 % Calcium (Ca) Max 0.00005 % Colour APHA Max 10 Copper (Cu) Max 0.000005 % Iron (Fe) Max 0.00001 % Lead (Pb) Max 0.000005 % Magnesium (Mg) Max 0.00002 % Potassium (K) Max 0.00005 % Residue after evaporation (ppm) Max 20 Residue after evaporation Max 0.002 % Toluene Max 1 % Sodium (Na) Max 0.00005 % Substances reducing KMnO4 Max 0.0005 %

Specifications

Assay (by GC) Min 99.0 % Identity (IR) Passes test Density (d20°C/4°C) 0.824 - 0.827 Foreign alcohols Max 1.0 % Appearance A clear colorless liquid

Specifications

Assay (as Fe) Min 20 % Copper (Cu) Max 0.01 % Ferrous ion (Fe2+) Max 0.1 % Chloride (Cl) Max 0.03 % Nitrate (NO3) Max 0.05 % Appearance Grayish-white to yellowish powder

Specifications

Absorption maxima in water About 425 nm Appearance Orange coloured powder

Specifications

Assay (acidimetric) 98 - 100.5% Insoluble matter in water Max 0.025% Sodium Carbonate (Na2CO3) Max 1.0% Chloride (Cl) Max 0.005% Sulfate (SO4) Max 0.003% Phosphate (PO4) Max 0.001% Silicate (SiO2) Max 0.001% Total nitrogen (N) Max 0.0003% Heavy metals (as Pb) Max 0.002% Iron (Fe) Max 0.001% Calcium (Ca) Max 0.005% Potassium (K) Max 0.05% Magnesium (Mg) Max 0.002% Mercury (Hg) Max 0.00001%

Specifications

Assay Min 99.9 % Trace metal analysis Max 0.1 % Appearance Gray to black powder

Specifications

Total nitrogen (N) Max 0.001 % Copper (Cu) About 50 % Aluminium (Al) About 45 % Zinc (Zn) About 5 % Appearance Gray colored powder

Specifications

Assay (by iodometry) % Min 99.0 Sulfate (SO4) % Max 0.5 Iron (Fe) % Max 0.005

Specifications

Assay (after ingnition) Min 99.5 - 100.5 % pH of 5% solution 5.0 - 8.0 Insoluble matter Max 0.005 % Bromide (Br) Max 0.005 % Iodide (I) Max 0.001 % Ferrocyanide [(Fe(CN)6]4- Max 0.0001 % Chlorate and Nitrate (NO3) Max 0.003 % Phosphate (PO4) Max 0.0005 % Sulphate (SO4) Max 0.001 % Total Nitrogen (N) Max 0.0005 % Heavy metals (by ICP-OES) Max 0.0005 %

Specifications

Assay (iodometric) Min 98 % Chloride (Cl) Max 0.1 % Sulphate (SO4) Max 0.06 % Iron (Fe) Max 0.01 % Potassium (K) Max 0.1 % Sodium (Na) Max 0.05 % Appearance Reddish brown flakes

Specifications

Assay (as Cu2O) % Min 95 Volatile matter % Max 0.5 Metallic impurities % Max 0.5

Specifications

Assay 99.0 % Ferric ion (Fe) Max 0.1 % Copper (Cu) Max 0.005 % Insoluble matter Max 0.01 % pH (5% solution in water) 3.0 - 4.0 Chloride (Cl) Max 0.001 % Manganese (Mn) Max 0.05 % Zinc (Zn) Max 0.005 % Calcium (Ca) Max 0.005 % Magnesium (Mg) Max 0.002 % Potassium (K) Max 0.002 %

Specifications

Assay Min 99.0 % Weight/ml at 20°C 1.099 - 1.101 g Water (H2O) Max 0.2 % Calcium (Ca) Max 0.0005 % Colour APHA Max 20 Copper (Cu) Max 0.0001 % Iron (Fe) Max 0.0005 % Lead (Pb) Max 0.0001 % Magnesium (Mg) Max 0.0001 % Magnesium (Mg) Max 0.0001 % Potassium (K) Max 0.0002 % Residue after evaporation Max 0.02 % Sodium (Na) Max 0.001 % Total phosphorus (P) Max 0.0001 % Total silicon (Si) Max 0.0001 % Zinc (Zn) Max 0.0001 %