Sodium Hydroxide → Sodium Sorbate
Reaction equation
[OH-].[Na+:2].[C:3]([OH:10])(=[O:9])/[CH:4]=[CH:5]/[CH:6]=[CH:7]/[CH3:8]>>[C:3]([O-:10])(=[O:9])/[CH:4]=[CH:5]/[CH:6]=[CH:7]/[CH3:8].[Na+:2]Participants
Reactant 2
Product 1
Procedure
As purification processes of sorbic acid or its salt, a treatment with activated carbon, recrystallization with water or with a mixture of water and an organic solvent, and distillation purification of a solution of sorbic acid or its salt in petroleum have been known. For example, Japanese Unexamined Patent Application Publication No. 54-163516 discloses a purification process. This process includes the steps of preparing a polyester from ketene and crotonaldehyde, decomposing the polyester with hydrochloric acid in the presence of, for example, a urea compound to yield a decomposition reaction mixture, separating the decomposition reaction mixture by filtration, and washing the residue to yield a crude sorbic acid, adding a sodium hydroxide aqueous solution to the crude sorbic acid to yield a sodium sorbate aqueous solution, treating the aqueous solution with activated carbon, neutralizing the treated solution, and cooling the neutralized solution to crystallize sorbic acid.
Sources & evidence
- ORD record
- ord-f24b9cb76ac24abba7933f01b8e60bc2
- Source dataset
- uspto-grants-2002_12
- Patent number
- US06495717B1
Reaction notes
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