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Chemical Permeation Guide What is permeation? Permeation is the process by which a potentially hazardous chemical moves through a material on a molecular level. Molecules of chemical adsorb onto the outer surface of the material. They then enter a...

Essentials +ward’sscience Ward’s Science Essentials Chemicals List We have all the chemicals you need! • Save time and stock your chemical with Ward’s Chemicals • Largest selection of chemicals • Designed for chemistry education • Chemicals for ev...