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Merck

Following ion diffusion in solution.

Science (New York, N.Y.) (1994-03-25)
S Rondot, J Cazaux, O Aaboubi, J P Chopart, A Olivier
ABSTRACT

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.

MATERIALS
Product Number
Brand
Product Description

Zinc, foil, 8mm disks, thickness 1.0mm, as rolled, 99.99+%
Zinc, foil, 4mm disks, thickness 0.125mm, as rolled, 99.95+%
Zinc, foil, 8mm disks, thickness 1.0mm, as rolled, 99.95+%
Zinc, foil, 4mm disks, thickness 0.20mm, as rolled, 99.95+%
Zinc, foil, not light tested, 25x25mm, thickness 0.015mm, 99.9%
Zinc, foil, 25mm disks, thickness 0.25mm, as rolled, 99.99+%
Zinc, foil, light tested, 25x25mm, thickness 0.025mm, as rolled, 99.99+%
Zinc, foil, light tested, 25x25mm, thickness 0.05mm, as rolled, 99.99+%
Zinc, foil, 2m coil, thickness 0.35mm, as rolled, 99.95+%
Zinc, foil, 6mm disks, thickness 0.35mm, as rolled, 99.95+%
Zinc, foil, 6mm disks, thickness 0.025mm, as rolled, 99.95+%
Zinc, foil, not light tested, 100x100mm, thickness 0.01mm, 99.9%
Zinc, foil, 4mm disks, thickness 0.05mm, as rolled, 99.95+%
Zinc, foil, 2m coil, thickness 0.025mm, as rolled, 99.95+%
Zinc, foil, 2m coil, thickness 0.175mm, as rolled, 99.95+%
Zinc, foil, 50mm disks, thickness 0.5mm, as rolled, 99.99+%
Zinc, foil, 4mm disks, thickness 0.25mm, as rolled, 99.99+%
Zinc, foil, 4mm disks, thickness 0.005mm, 99.9%
Zinc, foil, 2m coil, thickness 0.5mm, as rolled, 99.95+%
Zinc, foil, 25mm disks, thickness 0.5mm, as rolled, 99.95+%
Zinc, foil, not light tested, 100x100mm, thickness 0.025mm, as rolled, 99.99+%
Zinc, foil, 4mm disks, thickness 0.05mm, as rolled, 99.99+%
Zinc, foil, 5m coil, thickness 0.15mm, as rolled, 99.95+%
Zinc, foil, 6mm disks, thickness 0.20mm, as rolled, 99.95+%
Zinc, foil, 4mm disks, thickness 0.35mm, as rolled, 99.95+%
Zinc, foil, 6mm disks, thickness 0.5mm, as rolled, 99.99+%
Zinc, foil, 6mm disks, thickness 0.125mm, as rolled, 99.99+%
Zinc, foil, light tested, 50x50mm, thickness 0.025mm, as rolled, 99.99+%
Zinc, foil, 6mm disks, thickness 0.1mm, as rolled, 99.95+%
Zinc, foil, 6mm disks, thickness 1.0mm, as rolled, 99.95+%