Method of preventing discoloring of maleic anhydride

Details Method of preventing discoloring of maleic anhydride Method of preventing discoloring of maleic anhydride

C - Chemistry, Metallurgy

07

D

260/350.2

C07D 307/60 (2006.01) C07C 51/573 (2006.01)

Patent

CA 2032529

- 17 - ABSTRACT A monochloro-substituted aliphatic alcohol contain- ing 3 - 8 carbon atoms, a copper compound and a zinc com- pound are added to maleic anhydride to prevent discolora- tion of the maleic anhydride. Deterioration of the qual- ity of the maleic anhydride can be inhibited when it is stored for a long period of time or heat-melted.

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