Alumina is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories.

Methyl p-Hydroxybenzoate is the methyl ester of p-hydroxybenzoic acid. It can be used to inhibit yeast growth and can also be used as an antimicrobial agent for Grampositive anaerobic bacteria. It must be suspended in ethanol first, since it does not dissolve readily in water. It is also indicated…