| abstract |
PROCEDURE FOR THE MANUFACTURE OF DERIVATIVES OF 3-AMINOPROPANOSULPHONIC ACID. IT CONSISTS OF THE FOLLOWING STAGES: 1) DISSOLUTION OF THE 3-AMINOPROPANOSULPHONIC ACID IN A SOLUTION OF THE M (CH) N BASE, WITH ADDITION OF ACETIC ACID IF NECESSARY. 2) ADDITION OF ACETIC ANHYDRIDE IN THE SOLUTION, KEEPING THE TEMPERATURE BETWEEN 30 AND 40GC. 3) DRY CONCENTRATION OF THE SOLUTION, THEN PURIFYING IT BY DISSOLUTION IN WATER, CONCENTRATING THE SOLUTION AGAIN. COMPOUNDS OF GENERAL FORMULA (CH3CONH- (CH2) 3-SO3) NM; WHERE M IS AN ALKALINE METAL ATOM (SODIUM, POTASSIUM OR LITHIUM), IN WHICH CASE N IS 1, OR A MAGNESIUM, CALCIUM OR ZINC ATOM, IN WHICH CASE N IS 2. REINFORCED MEMBRANE STABILIZING ACTIVITY. C |