Packaging and storage
Preserve in tight, light-resistant containers, and avoid exposure to direct sunlight and to excessive heat.
Labeling
Label it to indicate that it is flammable.
Limit of nonvolatile residue
Evaporate 3 mL of Tincture in a suitable tared dish on a steam bath, and dry the residue at 100
for 2 hours: the weight of the residue is between 525 mg and 675 mg.
Alcohol content, Method II 611:
between 74.0% and 80.0% of C
2H
5OH, the dilution to approximately 2% alcohol being made with methanol instead of with water.