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Alternative solvents



P2 Tech,
 
We are working with company that is researching alternative solvents for a degreasing process at their lamp plant.  The material to be removed is of the consistency of a used motor oil.  This process has previously used methylene chloride, switched to n-propyl bromide, but is now using denatured alcohol.  The alcohol is not providing the degreasing ability that the other solvents provided.  They would like to replace the alcohol with a material that would not present an air or hazardous waste concern.  Any suggestions, success stories and advice would be appreciated.
 
Thanks in advance.
 
David A. Foulkes, Environmental Specialist
State of Ohio EPA
Office of Pollution Prevention
P.O. Box 1049
Columbus, OH  43216-1049
(614) 644-3118
FAX: (614) 644-2807
email:  dave.foulkes@epa.state.oh.us
World Wide Web:  www.epa.state.oh.us/opp