The preparation and measurement of the surface activity of a series of 4-alkyl-1,1'-spirobipiperidinium bromides.
D001965:Bromides; D010880:Piperidines; D013141:Spiro Compounds; D013500:Surface Tension
D001965:Bromides; D010880:Piperidines; D013141:Spiro Compounds
PIPERIDINES; SPIRO COMPOUNDS; SURFACE TENSION