... 4 VOLUMES OF ALCOHOL AND 6 VOLUMES OF DISTILLED WATER. THE CRYSTALS, DRIED IN CACUO, MELT AT 118°C TO 121°CCONFORMDISSOLUBLE ... CLEAR SOLUTIONCONFORMACIDITY OR ALKALINITY0.1ML PHENOLPHTHALEIN: 5ML SOLUTION R, THE SOLUTION IS COLOURLESS. 1ML OF 0.1M SODIUM HYDROXIDE IS ... REQUIRED TO CHANGER THE COLOUR OF THE INDICATOR.CONFORM APPEARANCE OF SOLUTIONSOLUTION R IS CLEAR, ...