PHOSPHOMOLYBDIC ACID AR
Phosphomolybdic acid is used as reagent for colorimetric determination of phenothiazine derivatives in various pharmaceutical products. The reagent oxidizes the derivative to a cationic free radical, with which it then forms a coloured salt.
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Description
Phosphomolybdic acid is used as reagent for colorimetric determination of phenothiazine derivatives in various pharmaceutical products. The reagent oxidizes the derivative to a cationic free radical, with which it then forms a coloured salt.
Application
Phosphomolybdic is used as a stain for developing thin-layer chromatography plates, staining phenolics, hydrocarbon waxes, alkaloids, and steroids. Conjugated unsaturated compounds reduce PMA to molybdenum blue.
Notes
Phosphomolybdic acid catalysts can be prepared by forming a mixture of hydrated Phosphomolybdic acid in an anhydrous alkyl alcohol. This is followed by adding a base to the mixture and evaporating the mixture to form a catalyst powder, and subsequently calcining and dehydrating the powder to yield the active catalyst.
Procedure
Dissolve 5.0 g in 30 mL of water, make alkaline with ammonium hydroxide, and add 0.25 to 0.30 mL of bromine water. Boil for a few minutes, filter, wash the precipitate several times, and discard the filtrate and washings.
Packing & supply
Supply locations
PHOSPHOMOLYBDIC ACID AR manufacturers, suppliers, exporters in Mumbai, Gandhidham, Kolkata, Varanasi, Visakhapatnam, Chennai, Fujairah, Dubai, Canada BC, Barka, Sohar, Muscat, Oman. Lab chemicals manufacturers, suppliers, exporters in India, UAE Middle East, Barka, Sohar, Muscat, Oman, Canada. PHOSPHOMOLYBDIC ACID AR is available in small packing as well as in bulk. Buy premium quality PHOSPHOMOLYBDIC ACID AR and other lab chemicals from one of the most trusted brands.
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