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The cause of castor oil instability
Time:2014-12-26 09:18:59

The cause of castor oil instability, specifically in the following aspects: Because polar castor oil, with a strong affinity for water, hygroscopic strong performance in the castor oil, castor oil can easily make when alkali refining emulsification phenomenon. A part of the soap is formed into a colloidal solution of the oil phase, resulting in difficult to separate.
The cause of castor oil instability
proportion of castor oil and the water is very close, so after washing alkali refining could easily lead to a two-phase stratified difficulties, improper operation, easy to form emulsification.
The cause of castor oil instability
ricinoleic acid in castor oil under certain conditions prone to generate intramolecular dehydration octadecadienoic acid melting at a melting point of 56 octadecadienoic acid and 54 in Mangold acid. If the drying process castor improper intramolecular dehydration of these high melting point of the unsaturated dicarboxylic acid, refined oil will reduce the transparency, decreased product quality, non-drying oil and castor oil to the drying oil change.
The cause of castor oil instability
Due to the castor oil fatty acid in the first 12 carbon atoms, a hydroxyl group makes the role of the double bond carbon atoms 9 and 10-bit more active, easily oxidized to azelaic acid. Therefore, the dehydration of castor oil under high temperature, degree of vacuum and the deodorization temperature requirements are more stringent.

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