Color of maleic anhydride

Details Color of maleic anhydride Color of maleic anhydride

1978-07-17

1979-06-26

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30760

Patent

active

041592751

ABSTRACT:
Discoloration of maleic anhydride is minimized by first passing the maleic anhydride in molten or dissolved form through a bed of cation exchange resin and then adding to the maleic anhydride a small amount of 3,3'-thiodipropionitrile.

REFERENCES:
patent: 3115477 (1963-12-01), Bowman et al.
patent: 3622600 (1971-11-01), Feder
patent: 3775436 (1973-11-01), Stenseth

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