Chemicals

Specifications

Assay Min 99.5 % pH (5% solution in water) 5-8 Heavy metals (as Pb) Max 0.0006 % Chloride, chlorate and Max 0.02 % bromide, bromate (as Cl) Total nitrogen (N) Max 0.002 % Iodide (I) Max 0.002 % Sulfate (SO4) Max 0.006 %

Specifications

Residue on ignition Max 0.4 % pH (2% w/v solution in water; 25°C) 5.0 - 7.0 Solubility in water Passes test Suitability Passes test for sensitivity as Appearance White soft powder

Specifications

Assay Min 99.5 % Substance insoluble in HCl Max 0.05 % Lead (Pb) Max 0.01 % Copper (Cu) Max 0.005 % Iron (Fe) Max 0.05 % Appearance Silvery white ribbon

Specifications

Assay (Al) Min 98 % Silicon (Si) Max 0.1 % Copper (Cu) Max 0.02 % Iron (Fe) Max 0.1 % Manganese (Mn) Max 0.02 % Titanium (Ti) Max 0.03 % Nitrogen content (as N) Max 0.001 % Insoluble in dil. HCl Max 0.005 % Appearance Gray powder

Specifications

Assay (acidimetric) Min 99.5 % pH (5% water at 25°C) 4.1 - 4.5 Insoluble matter in water Max 0.01 % Chloride (Cl) Max 0.001 % Sulfate (SO4) Max 0.003 % Total Nitrogen (N) Max 0.001 % Heavy metals (by ICP-OES) Max 0.001 % Iron (Fe) Max 0.001 % Sodium (Na) Max 0.005 % Loss on drying (at 105°C; 2 hrs) Max 0.2 %

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 % Nickel (Ni) Max 0.001 % Magnesium (Mg) Max 0.002 % Mercury (Hg) Max 0.00001 % Appearance White deliquescent pellets or pearls

Specifications

Assay Min 99 % Chloride (Cl) Max 0.005 % Sulphate and selenate (as SO4) Max 0.005 % Nitrogen compounds (as N) Max 0.005 % Iron (Fe) Max 0.001 % Appearance White powder

Specifications

Assay 95-98 % Loss on ignition Max 0.5 % Water solube matter Max 1.0 % Phosphate (PO4) Max 0.3 % Sulphate (SO4) Max 0.5 % Manganese (Mn) Max 0.25 % Appearance Reddish powder

Specifications

Assay Min 85 % Weight/ml at 20°C About 1.71 g Chloride (Cl) Max 0.0005 % Nitrate (NO3) Max 0.0005 % Silicate (SiO2) Max 0.025 % Sulfate (SO4) Max 0.002 % Arsenic (As) Max 0.0001 % Calcium (Ca) Max 0.004 % Copper (Cu) Max 0.0005 % Iron (Fe) Max 0.0015 % Lead (Pb) Max 0.001 % Magnesium (Mg) Max 0.004 % Manganese (Mn) Max 0.0005 % Potassium (K) Max 0.005 % Substance reducing KMnO4 (as O) Max 0.001 % Volatile acids (as CH3COOH) Max 0.001 %

Specifications

Specific optical ratation ([a]20/D; 10% in wate; on dried substance) +52.6 to +53.2°c Chloride (Cl) Max 0.005 % Sulphate (SO4) Max 0.01 % Sulphite (as SO2) Passes test Water (H2O) 7.5 - 9.5 % Heavy metal (as Pb) Max 0.001 % Maltose Max 0.02 % Suitability (for microbiology) Passes test Sulphate ash Max 0.05 % Arsenic (As) Max 0.00005 % Appearance White crystalline powder

Specifications

Assay Min 99 % pH (5% in water, 25°C) 5.0 - 8.3 Insoluble matter Max 0.005 % Chloride (Cl) Max 0.001 % Iodate (IO3) Max 0.0005 % Nitrite (NO2) Max 0.001 % Phosphate (PO4) Max 0.0005 % Sulfate (SO4) Max 0.003 % Calcium (Ca) Max 0.005 % Iron (Fe) Max 0.0003 %

Specifications

Assay (acidimetric) Min 97 % Carbonate (Na2CO3) Max 1.0 % Chloride (Cl) Max 0.01 % Phosphate (PO4) Max 0.002 % Potassium (K) Max 0.1 % Silicate (SiO2) Max 0.01 % Iron (Fe) Max 0.001 % Heavy metals (Pb) Max 0.002 % Arsenic (As) Max 0.0004 % Sulphate (SO4) Max 0.003 % Nitrogen compounds (as N) Max 0.0005 % Appearance White deliquescent pellets or pearls

Specifications

Buffer PH 12 at 20°C Tolerance +/- 0.01 Description : Clear liquid

Specifications

Assay 98-100.5 % pH (5% solution in water) 8.7-9.3 Substance insoluble in water Max 0.2 % Chloride (Cl) Max 0.02 % Sulfate (SO4) Max 0.05 % Heavy metal (as Pb) Max 0.001 % Arsenic (As) Max 0.0002 % Copper (Cu) Max 0.0025% Iron (Fe) Max 0.002 % Loss on drying (at 130°C) Max 5.0 %