| 摘要 |
According to the present invention there is provided a process for retarding the discoloration of dicarboxylic acids, said process comprising: (a) heating said dicarboxylic acid to a temperature above its melting point; (b) adding water to said dicarboxylic acid. A further aspect of the present invention provides a composition for retarding the discoloration of dicarboxylic acids, said composition comprising 1 g, preferably 2.5 g, more preferably 5 g, of water per 1,000 g of dicarboxylic acid. A further aspect of the present invention provides for the use of water to retard the discoloration of dicarboxylic acids, particularly molten dicarboxylic acids.
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