http://www.sigmaaldrich.com/Brands/Aldrich/Technical_Bulletins/AL_143/Molecular_Sieves.html (http://www.sigmaaldrich.com/Brands/Aldrich/Technical_Bulletins/AL_143/Molecular_Sieves.html)
Buster is correct. I guess the 4A's would pick up water, but would the pores bee so big that they would pick up my product?