Reagents

Specifications

Assay (iodometric) Min 99.0 % Insoluble matter in water Max 0.005 % Chloride (Cl) Max 0.01 % Hexacyanoferrate (III) Max 0.05 % Sulfate (SO4) Max 0.01 % Appearance Ruby red crystalline powder

Specifications

Assay Min 99 % Weight/ mL at 20°C 1.085 - 1.087 g Refractive index (20°C; 589 nm) 1.516 - 1.518 Acidity Max 1 ml N % Water (H2O) Max 0.5 % Appearance Almost clear colorless liquid

Specifications

Purity (by GC) Min 99.8 % (excluding stabilizer) Refractive index (20°C; 589nm) 1.444 - 1.445 Water (H2O) Max 0.05 % Acidity (as HCl) Max 0.0005 meq/g Non volatile matter Max 0.0005 % Ionised chloride (Cl) Max 0.00002 % Free chlorine (Cl) Max 0.0005 % Metallic impurities No reaction Aldehydes and ketones (as CH3CHO) Max 0.005 % Organic impurities Passes test Ethanol as stabilizer 0.5-1.0 % Purity (by GC) Min 99.8 % (excluding stabilizer) Appearance Clear colorless liquid

Specifications

Assay % Min 98.5 Melting range °C 114 - 116 Sulfated ash % Max 0.05 pH (1% aqueous) 5.0 - 7.0 5

Specifications

Assay (Titration) Min 99.5 % Arsenic (As) Max 0.0001 % Loss on drying Max 0.05 % pH (5%; in H2O) 5.9 - 6.4 Other amino acids Max 0.1 % Ammonium (Nh4) Max 0.02 % Chloride (Cl) Max 0.004 % Sulphate (SO4) Max 0.005 %

Specifications

Assay (alkalimetric) Min 99 % Melting point 128 - 131°C Sulfated ash Max 0.2 % Appearance White to yellow to beige powder

Specifications

Assay Min 99.5 % Weight/ mL at 20°C About 0.95 g Freezing point 20 - 22°C Refractive index (20°C; 589 nm) 1.465 - 1.467 Cyclohexanone Max 0.5 % Appearance A clear colorless liquid

Specifications

Assay (by GC) Min 99.5 % Calcium (Ca) Max 0.00002 % Colour APHA Max 10 Copper (Cu) Max 0.000002 % Ethanol Max 0.01 % Iron (Fe) Max 0.00001 % Lead (Pb) Max 0.000002 % Magnesium (Mg) Max 0.00001 % Methanol Max 0.005 % Potassium (K) Max 0.00002 % Propan-2-ol Max 0.005 % Residue after evaporation (ppm) Max 10 Sodium (Na) Max 0.0001 % Substances darkened by H2SO4 (APHA)Max 10

Specifications

Assay (By GC) Min 99 % Wt.per ml at 20 ?C 1.115 - 1.117 g Refractive index 1.446 - 1.447 Water Max 0.2 % Sulfated ash Max 0.01 % Copper (Cu) Max 0.00005 % Iron (Fe) Max 0.00005 % Lead (Pb) Max 0.00005 % Appearance Clear colourless viscous liquid

Specifications

Solubility (0.1% in 0.1 N NaOH) Clear reddish to Absorbtion maxima (0.1N NaOH) 575 - 585 nm Absortivity (A 1%/1cm; 1hr) Min 550 Loss on drying (at 105°C; 1hr) Max 7 % Sensitivity for Zinc Passes test Appearance Red-brown to dark brown crystalline powder

Specifications

Solubility (0.1% in 0.1 N NaOH) Clear reddish to Absorbtion maxima (0.1N NaOH) 575 - 585 nm Absortivity (A 1%/1cm; 1hr) Min 550 Loss on drying (at 105°C; 1hr) Max 7 % Sensitivity for Zinc Passes test Appearance Red-brown to dark brown crystalline powder