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Molybdenum blue - WikiMili, The Free Encyclopedia

2019-4-25 · Molybdenum blue Last updated April 25, 2019 A sample of one kind of molybdenum blue with the formula Na 15 [Mo 126 Mo 28 O 462 H 14 (H 2 O) 70] ⁄ 2 [Mo 124 Mo 28 O 457 H 14 (H 2 O) 68] ⁄ 2.. Molybdenum blue is a term applied to:. reduced heteropolymolybdate complexes, polyoxometalates containing Mo(V), Mo(VI), and a hetero atom such as phosphorus or silicon reduced isopolymolybdate ...

Molybdenum blue : definition of Molybdenum blue …

Molybdenum blue is a term applied to:. reduced heteropolymolybdate complexes, polyoxometalates containing Mo(V), Mo(VI), and a hetero atom such as phosphorus or silicon reduced isopolymolybdate complexes, polyoxometalates containing Mo(V), Mo(VI) formed when solutions of Mo(VI) are reduced a blue pigment containing molybdenum(VI) oxide; The “heteropoly-molybdenum blues”, are used ...

Molybdenum Blue | Definition of Molybdenum Blue …

Molybdenum blue definition is - a blue complex substance that is obtained usually in colloidal form by mild reduction of a molybdate in acid solution and that serves as the basis of …

Molybdenum blue | Project Gutenberg Self-Publishing ...

Molybdenum blue is a term applied to: . reduced heteropolymolybdate complexes, polyoxometalates containing Mo(V), Mo(VI), and a hetero atom such as phosphorus or silicon reduced isopolymolybdate complexes, polyoxometalates containing Mo(V), Mo(VI) formed when solutions of Mo(VI) are reduced a blue pigment containing molybdenum(VI) oxide; The "heteropoly-molybdenum blues", are used …

MOLYBDENUM BLUE METHOD FOR THE …

CONCLUSIONS: A clear, stable and intense blue colored molybdenum blue complex was the resultant of the reaction between aqueous solutions of the drug levetiracetam with ammonium molybdate and hydrazine sulphate. The molybdenum blue complex showed a λ max at 823 nm, Beer’s law obedience in method I was found to be 0.02-0.08mg/ml. The method ...

Molybdenum blue photometry method for the …

An improved analytical procedure has been described for the spectrophotometric determination of colloidal silica in leaching solution by means of adding fluoride to convert colloidal silica into reactive silica. The method is a variation of the classical molybdenum blue method, and the optimal wavelength, te

Molybdenum blue photometry method for the …

An improved analytical procedure has been described for the spectrophotometric determination of colloidal silica in leaching solution by means of adding fluoride to convert colloidal silica into reactive silica. The method is a variation of the classical molybdenum blue method, and the optimal wavelength, te

Molybdenum Blue Reaction: A Spectrophotometric …

2020-12-1 · A Spectrophotometric Study of Phosphomolybdenum Blue Formed by the Reaction of Phosphate with a Mixture of Molybdenum(V) (Mo 2 O 42+ ) and Molybdenum(VI) and Application to the Spectrophotometric Determination of Small Amounts of Phosphates.

Molybdenum blue: Binding to collagen fibres and ...

2005-7-1 · Molybdenum blue binding to collagen fibres was achieved by addition of MB solution to the collagen fibril suspension at room temperature (22 °C), initially at a 1:10 dilution, with sequential addition of MB (over a period of hours) when decolorization of the …

Production of molybdenum blue by two novel …

The isolates exhibited dark blue colonies when grown on solid medium containing sodium molybdate which indicated the reduction of molybdate to molybdenum (Mo) blue. The absorbance values at 865 nm were 0·743 ± 0·007 and 0·453 ± 0·005 for Mo1 and MoI respectively.

Molybdenum_blue - chemeurope.com

1 days · Molybdenum blue is a term applied to: . reduced heteropolymolybdate complexes, polyoxometalates containing Mo(V), Mo(VI), and a hetero atom such as phosphorus or silicon reduced isopolymolybdate complexes, polyoxometalates containing Mo(V), Mo(VI) formed when solutions of Mo(VI) are reduced a blue pigment containing molybdenum(VI) oxide; The “heteropoly-molybdenum …

(PDF) Direct, one-step synthesis of molybdenum blue …

Molybdenum blue (MB), is a polyoxometalate with a nanoring structure comprising Mo5+–O–Mo6+ bridges, which is active for the catalytic oxidation of cyclohexane to cyclohexanol and cyclohexanone.

The molybdenum blue reaction for the determination …

The molybdenum blue reaction, used predominantly for the determination of orthophosphate in environmental waters, has been perpetually modified and re-optimised over the years, but this important reaction in analytical chemistry is usually treated as something of a 'black box' in the analytical literature.

Molybdate Reduction to Molybdenum Blue by an …

A molybdenum-reducing bacterium from Antarctica has been isolated. The bacterium converts sodium molybdate or Mo 6+ to molybdenum blue (Mo-blue). Electron donors such as glucose, sucrose, fructose, and lactose supported molybdate reduction. Ammonium sulphate was the best nitrogen source for molybdate reduction. Optimal conditions for molybdate reduction were between 30 and …

Molybdate Reduction to Molybdenum Blue by an …

A molybdenum-reducing bacterium from Antarctica has been isolated. The bacterium converts sodium molybdate or Mo 6+ to molybdenum blue (Mo-blue). Electron donors such as glucose, sucrose, fructose, and lactose supported molybdate reduction. Ammonium sulphate was the best nitrogen source for molybdate reduction. Optimal conditions for molybdate reduction were between 30 and …

Kinetics of Molybdenum Reduction to Molybdenum …

The cellular reduction of molybdate to molybdenum blue occurred optimally at 4 mM phosphate, using 1% (w/v) glucose, 50 mM molybdate, between 28 and 30°C and at pH 7.3. The spectrum of the Mo-blue product showed a maximum peak at 865 nm and a shoulder at 700 nm.