SODIUM ALUMINUM SULFATE, also known as sodium alum, has the chemical formula NaAl(SO4)2·12H2O and the CAS number 10102-71-3. It is a white crystalline solid with no distinct odor. The basic structure of sodium aluminum sulfate consists of sodium ions, aluminum ions, and sulfate ions. This compound is highly soluble in water. Safety information regarding sodium aluminum sulfate suggests that it may cause irritation to the skin and eyes. It is important to avoid ingestion or inhalation of this compound. In case of contact, immediate medical attention should be sought. Sodium aluminum sulfate is not considered to be a significant environmental hazard.
Applicable Fields
Food Industry: Sodium aluminum sulfate is commonly used as a food additive. It serves as a leavening agent in baking, helping dough rise by releasing carbon dioxide gas. The mechanism of action in this context involves the reaction of sodium aluminum sulfate with an acid, such as cream of tartar, to produce carbon dioxide gas.
Water Treatment: Sodium aluminum sulfate is also utilized in water treatment processes. It acts as a coagulant, helping to remove impurities and particles from water. The mechanism of action involves the formation of aluminum hydroxide flocs, which trap and precipitate contaminants.
Storage
Conditions: Store in a cool and dry place.
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