DAB6 CAMPHOR POWDER

ITEM

STANDARD

RESULTS

CHARACTERS

WHITE CRYSTALLINE POWDER WITH CAMPHORACEOUS ODOUR

CONFORM

IDENTIFICATION

DISSOLVE 1.0G IN 30ML OF METHANOL. ADD 1.0G OF HYDROXYLAMINE HYDROCHLORIDE AND 1.0G OF ANDYDROUS SODIUM ACETATE. BOIL UNDER A REFLUX CONDENSER FOR 15 MINS. ALLOW TO COOL, AND ADD 100ML OF DISTILLED WATER. APRECIPITATE IS FORMED. FILTER, WASH WITH DISSTILLED WATER AND RECRYSTALLIZE FROM 10ML OF A MIXTURE OF 4 VOLUMES OF ALCOHOL AND 6 VOLUMES OF DISTILLED WATER. THE CRYSTALS, DRIED IN CACUO, MELT AT 118°C TO 121°C

CONFORM

DISSOLUBLE TEST

1G:20ML IN ETHANOL (HEREINAFTER CALLED SOLUTION R)IS A CLEAR SOLUTION

CONFORM

ACIDITY OR ALKALINITY

0.1ML 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 SOLUTION

SOLUTION R IS CLEAR,TRANSPARENT COMPARED WITH DISTILLED WATER

CONFORM

RELATED SUBSTANCES

96% MIN.

97.1

RESIDUE ON EVAPORATION

0.1% MAX.

0.01

MELTING POINT:

174 - 179°C

174.9

CONCLUSION:

ANALYSIS RESULT CONFORMING TO STANDARD OF DAB 8