Sodium Molybdate Dihydrate BP GradePh Eur
Content: 98.0 per cent to 100.5 per cent (dried substance).
Appearance: White or almost white powder or colourless crystals.
Solubility: Freely soluble in water.
A. Loss on drying (see Tests).
B. Dissolve 0.2 g in 5 ml of a mixture of equal volumes of nitric acid and water and add 0.1 g of ammonium chloride. Add 0.3 ml of disodium hydrogen phosphate solution and heat slowly at 50-60C. A yellow precipitate is formed.
C. Dissolve 0.15 g in 2 ml of water, the solution gives reaction of sodium.
Solution S: Dissolve 10.0 g in water and dilute to 50 ml with the same solvent.
Appearance of solution: Solution S is clear and colourless.
Chlorides: Maximum 50 ppm.
Phosphates: Maximum 200 ppm.
Ammonium: Maximum 10 ppm, determined on 0.10 g.
Heavy metals: Maximum 10 ppm.
Loss on drying: 14.0 per cent to 16.0 per cent, determined on 1.000 g by drying in an oven at 140C for 3 h.
Dissolve 0.100 g in 30 ml of water, add 0.5 g of hexamethylenetetramine and 0.1 ml of a 250 g/l solution of nitric acid. Heat to 60C. Titrate with 0.05 M lead nitrate using 4-(2-pyridylazo)resorcinol monosodium salt as indicator. 1 ml of 0.05 M lead nitrate is equivalent to 10.30 mg of Na2MoO4.
Shelf life, Storage and Packing
It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.
GLP, cGMP (FDA) Approved, WHO-GMP, ISO 9001: 2015, ISO14001:2015, OHSAS18001:2007, FSSC 22000: 2005, FSSAI, Kosher and Halal Certified.