Chloride → Sodium 3-chloro-2-hydroxypropylsulfonate

Participants

Reaction Steps

The title alkylating agent was made by reacting sodium metabisulfite (104.5 g) with epichlorohydrin (101.8 g) in water (481 g). To this solution of alkylating agent at 50°-60° C. was added the product from Part A (157 g). This mixture was stirred and heated to 85°-90° C. Reaction was continued with the pH maintained in the range 8 to 9 by the incremental addition of 50% aqueous NaOH. Reaction was continued until the pH had stabilized and the ratio of ionic chloride to total chloride exceeded 0.99. Vacuum was applied to remove water until sufficient water had been removed to give a 50% solids product which was a clear, yellow liquid.

Provenance & Evidence