Sulfuric Acid → HCID 86751627, compound

Participants

Reaction Conditions

Reaction Steps

To 15 g of L-valine were added 28.5 g of sodium p-n-propylbenzenesulfonate and 56.5 g of water. After the pH was adjusted to 1.5 with sulfuric acid, the mixture was dissolved at 50° C. Then, the solution was cooled to 10° C. to obtain 13 g of L-valine p-n-propylbenzenesulfonate. The analysis of the mother liquor revealed that the precipitation rate of valine was only 30%. The solubility of L-valine p-n-propylbenzenesulfonate in water at 10° C. (pH 1.5) was 29% by weight. The thus-obtained crystals were white fine crystals, the crystal system was a monoclinic system, and the specific gravity of the crystals was 1.27 g/cm3.

Provenance & Evidence