Reagents

Specifications

Tolerance +/- 0.0005M Appearance Clear solution The standardisation material (sodium chloride) is traceable to NIST Reference Standard Material potassium chloride, number 999.

Specifications

Assay (argentometric) Min 98 - 100.5 % pH ( 5% solution in water at 25°C) 5.0 to 8.8 Bromate (BrO3) Max 0.00.5 % Chloride (Cl) Max 0.5 % Sulphate (SO4) Max 0.01 % Heavy metal (as Pb) Max 0.001 % Barium (Ba) Max 0.005 % Iron (Fe) Max 0.002 % Magnesium and alkali earth metals Max 0.02 % Loss on drying (at 105°C) Max 3 % Appearance White crystalline powder

Specifications

Assay (By argentometry) Min. 99 % pH ( 5% in water at 25°C) 5.0 - 8.8 Insoluble matter Max. 0.005 % Bromate (BrO3) Max. 0.001 % Chloride (Cl) Max. 0.2 % Sulfate (SO4) Max. 0.002 % Barium (Ba) Max. 0.002 % Iron (Fe) Max. 0.0005 % Calcium (Ca) Max. 0.002 % Magnesium (Mg) Max. 0.001 % Potassium (K) Max. 0.1 %

Specifications

Assay Min 97 % Chloride (Cl) Max 0.5 % Sulphate (SO4) Max 0.01 % Copper (Cu) Max 0.005 % Lead (Pb) Max 0.005 % Iron (Fe) Max 0.005 % Zinc (Zn) Max 0.005 % Cadmium (Cd) Max 0.005 % Appearance White hygroscopic crystals

Specifications

Assay (acidimetric) % Min 99.0 Chloride (Cl) % Max 0.005 Heavy metals (as Pb) % Max 0.004 Iron (Fe) % Max 0.005 Calcium (Ca) % Max 0.01

Specifications

Assay (Oxidimetric) Min. 99.0 % Loss on drying (in vacuum) Max. 0.1 % Alkalinity (as NaOH) Max. 0.1 % Chloride (NaCl) Max. 0.05 % Water insoluble matter Max 0.3 % Appearance White crystalline powder

Specifications

Assay Min 99 % Insoluble matter Max 0.005 % Chloride (Cl) Max 0.005 % Sulphate (SO4) Max 0.005 % Chromium (Cr) Max 0.005 % Copper (Cu) Max 0.005 % Iron (Fe) Max 0.005 % Lead (Pb) Max 0.005 % Appearance White crystalline powder

Specifications

Description White or faintly yelow crystals, odourles darkens on exposure to light. Solubilty 10% solution in water is clear. Identifcation ( FTIR) Conforms Assay (calculated on dried basis) (Iodimetric) 99 - 101% pH of 10% aq. soln. 7 – 8 Specifc optical rotation 10% soln. +103 - +108° Los on drying (for 24 hrs.at 60°C, vacum) 0.25% Heavy metals (as Pb) 0.02% Organic volatile impurites Passes test.

Specifications

Assay 91 - 106 % Loss on drying (at 105°C; 4 hrs) Max 15.0 % Arsenic (As) Max 0.00015 % Total ash 18-27 % Lead (Pb) Max 0.0005 % Heavy metal (as Pb) Max 0.004 % Viscosity (1% w/w solution; 25°C; on dry basis) Min 30 cps

Specifications

Assay Min 98 % Silver (Ag) 68.5-69.5 % Total impurities Max 0.05 % Insoluble in watter Max 0.02 % Fraction that cannot be Max 0.03 % precipitated with HCl Nitrate Max 0.001 % Aluminium (Al) Max 0.001 % Gold (Au) Max 0.001 % Calcium (Ca) Max 0.001 %

Specifications

Assay Min. 97 % Alkalinity Max. 5ml N % Nitrate (NO3) Max. 0.05 % Potassium (K) Max. 0.01 % Sodium (Na) Max. 0.1 % Appearance Brownish black powder

Specifications

Assay (AgNO3) Min 99.5 % Calcium Max 0.005 % Cadmium Max 0.01 % Iron Max 0.001 % Magnesium Max 0.001 % Sodium Max 0.05 % Lead Max 0.007 % Zinc Max 0.005 % Sulfate Max 0.01 % Water Max 1 %