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Non-Toxic Substitute for IPA

I have a client who is seeking information on a possible non-toxic substitute for Isopropanol.  
the IPA is used in the granulation step of vitamins and minerals production.  The Isopropanol is blended with vitamins and minerals and digestible binders in a ribbon blender.  The Isopropanol is evaporated by drying at 125 deg. F. for 12 to 24 hours. Is there a dry cellulose based solvent or any other non-toxic method to bind vitamins and minerals?

Any help on this would be greatly appreciated.


Joel Blood
Western Regional P2 
Information Clearinghouse
(800) 700-5854
(fax)  (916) 327-4494
P.O. Box 806,
Sacramento, CA 95812-0806