Mucilages are aqueous solutions of the viscid, gummy principles of some vegetable substances. Their principal uses are for the preparation of emulsions, and as excipients in pills.

They do not keep well, especially in warm weather.

Prepare the official Mucilage of Acacia as follows: In a flask place 20 Gm. acacia in small fragments; wash with cold water, then drain. Add 40 mils warm distilled water, stopper container, and frequently agitate contents until the gum is all dissolved; then strain through cheese-cloth.

Note present properties, and keeping properties:

Appearance

Color

Odor

Taste

Reaction

Mucil. Acac.; fresh:

1 week

2 weeks

3 weeks

4 weeks

The other official Mucilage is Mucilago Tragacanthse.