In general the however, in general not soluble or dispersible reaction is best it it takes place. between either in water immiscible organic solvents such as 1 the free base and the free acid dyestufl or the hydrocarbons, glyceride oils and the like, and, salt 01 the base with a strong acid such as hytherefore, this class or dyestuirs has not been drochloric d and t alkali metal salts of the gener