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Following ion diffusion in solution.

Following ion diffusion in solution.

Science (New York, N.Y.) (1994-03-25)

S Rondot, J Cazaux, O Aaboubi, J P Chopart, A Olivier

RÉSUMÉ

An x-ray projection microscope equipped with a charge-coupled device camera allows direct observation of zinc (Zn(2+)) ions diffusing in aqueous hydrochloric acid solution during the corrosion of zinc foil and pellets. Time series of microradiographic images with a lateral resolution on the order of 10 micrometers allow observation of the time and spatial evolution of the colorless Zn(2+) ions in solution without any previous treatment. The concentration distribution of the ions can be quantified from these images. This technique should find applications in the biology, chemistry, and electrochemistry of aqueous solutions, allowing direct observation of the behavior and concentration fluctuations of medium or heavy ions moving in a weakly absorbing medium.

MATÉRIAUX

Référence du produit

Marque

Description du produit

Zinc, foil, 300x300mm, thickness 0.1mm, as rolled, 99.95+%

Zinc, foil, 100x100mm, thickness 0.15mm, as rolled, 99.95+%

Zinc, foil, 100x100mm, thickness 0.1mm, as rolled, 99.95+%

Zinc, foil, 50x50mm, thickness 0.1mm, as rolled, 99.95+%

Zinc, foil, 0.5m coil, thickness 0.05mm, as rolled, 99.95+%

Zinc, foil, 150x150mm, thickness 0.15mm, as rolled, 99.95+%

Zinc, foil, 1m coil, thickness 0.025mm, as rolled, 99.95+%

Zinc, foil, 50x50mm, thickness 0.15mm, as rolled, 99.95+%

Zinc, foil, 5m coil, thickness 0.025mm, as rolled, 99.95+%

Zinc, foil, 50mm disks, thickness 0.175mm, as rolled, 99.95+%

Zinc, foil, 25x25mm, thickness 3mm, as rolled, 99.99+%

Zinc, foil, 10mm disks, thickness 0.01mm, 99.9%

Zinc, foil, 25x25mm, thickness 0.15mm, as rolled, 99.95+%

Zinc, foil, 10mm disks, thickness 0.25mm, as rolled, 99.99+%

Zinc, foil, 2m coil, thickness 0.075mm, as rolled, 99.95+%

Zinc, foil, 100x100mm, thickness 3mm, as rolled, 99.99+%

Zinc, foil, 25x25mm, thickness 6mm, as rolled, 99.99+%

Zinc, foil, 0.5m coil, thickness 0.5mm, as rolled, 99.95+%

Zinc, foil, 100x100mm, thickness 6mm, as rolled, 99.99+%

Zinc, foil, 0.5m coil, thickness 0.15mm, as rolled, 99.95+%

Zinc, foil, 15mm disks, thickness 0.05mm, as rolled, 99.95+%

Zinc, foil, 5m coil, thickness 0.05mm, as rolled, 99.95+%

Zinc, foil, 5m coil, thickness 0.125mm, as rolled, 99.95+%

Zinc, foil, 1m coil, thickness 0.05mm, as rolled, 99.95+%

Zinc, foil, 1m coil, thickness 0.35mm, as rolled, 99.95+%

Zinc, foil, 4mm disks, thickness 0.01mm, 99.9%

Zinc, foil, 150x150mm, thickness 0.175mm, as rolled, 99.95+%

Zinc, foil, 50x50mm, thickness 3mm, as rolled, 99.99+%

Zinc, foil, 50x50mm, thickness 6mm, as rolled, 99.99+%

Zinc, foil, 15mm disks, thickness 0.0025mm, 99.9%