Molecular Sieve 4A (0.4nm) (1.6-3mm Beads)
http://www.cosmoscience.org/shop/fm-sr-72866-molecular-sieve-4a-0-4nm-1-6-3mm-beads-28673
http://www.cosmoscience.org/web/image/product.template/28673/image_1920?unique=9300eeb
Molecular Sieve 4A (0.4nm) beads, 1.6-3mm size, excellent for drying, purification, and selective adsorption in industrial & lab applications. 1kg
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