Aluminum Sulfate Anhydrous

**Semantic type:** Immunologic Factor|Inorganic Chemical|Pharmacologic Substance

**Definition:** An aluminum salt with immune adjuvant activity. This agent adsorbs and precipitates protein antigens in solution; the resulting precipitate improves vaccine immunogenicity by facilitating the slow release of antigen from the vaccine depot formed at the site of inoculation.

**Synonyms:** - ALUMINUM SULFATE ANHYDROUS - alum