反应详情

The solution of parahydroxybenzoate in an aqueous solvent which is preferably used may be a solution of potassium parahydroxybenzoate in an aqueous solvent that may be obtained by reacting potassium phenoxide with carbon dioxide, or a solution of sodium parahydroxybenzoate or ammonium parahydroxybenzoate in an aqueous solvent that is prepared by dissolving parahydroxybenzoic acid obtained by a conventional method in an aqueous solvent with the aid of a basic substance such as sodium hydroxide, sodium carbonate, sodium bicarbonate, or ammonia.

1. custommay be obtained