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Substitution for Sodium Chromate?



I'm received a request from a company that manufactures gas absorption refrigerators and freezers for the RV, Marine and Truck industries.  They are interested in the possible substitution of sodium vanadate for sodium chromate.  They are not familiar with sodium vanadate being used as a rust inhibitor but are interested in any alternatives to their existing process and chemical use.

Any help, suggestions and case studies would be appreciated.

Thanks. 

David A. Foulkes, Environmental Specialist
State of Ohio EPA
Office of Pollution Prevention
P.O. Box 1049
Columbus, OH  43216-1049
(614) 644-3118
email:  dave.foulkes@epa.state.oh.us
World Wide Web:  http://www.epa.state.oh.us/opp
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<DIV><FONT size=1>I'm received a request from a company that manufactures gas 
absorption refrigerators and freezers for the RV, Marine and Truck 
industries.&nbsp; They are interested&nbsp;in the possible substitution of 
sodium vanadate for sodium chromate.&nbsp; They are not familiar with sodium 
vanadate being used as a rust inhibitor but are interested in any alternatives 
to their existing process and chemical use.</FONT></DIV>
<DIV><FONT size=1></FONT>&nbsp;</DIV>
<DIV>Any help, suggestions and case studies would be appreciated.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Thanks.&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>David A. Foulkes, Environmental Specialist<BR>State of Ohio EPA<BR>Office 
of Pollution Prevention<BR>P.O. Box 1049<BR>Columbus, OH&nbsp; 
43216-1049<BR>(614) 644-3118<BR>email:&nbsp; <A 
href="mailto:dave.foulkes@epa.state.oh.us";>dave.foulkes@epa.state.oh.us</A><BR>World 
Wide Web:&nbsp; <A 
href="http://www.epa.state.oh.us/opp";>http://www.epa.state.oh.us/opp</A><BR></DIV></BODY></HTML>