Aluminium sodium sulfate

International Numbering System (INS) for Food Additives: 521

Food additives Europe numbers: E521 

Aluminum sodium sulfate, also known as sodium aluminium sulfate or simply alum, isn't primarily a medication for humans, but it does have some medical applications. Here's a breakdown of its properties and uses:

Properties:

• A white crystalline powder, odorless and soluble in water.
• Acts as an astringent, causing tissues to contract and dry out secretions.
• Has some mild antiseptic properties.

Medical Uses:

• Topical Astringent (Veterinary): Used in dusting powders (10-20% concentration) to control bleeding and oozing from wounds and abrasions in animals.
• Astringent for Minor Cuts (Limited Human Use): May be used in very low concentrations (solution or styptic pencil) to help stop minor bleeding from superficial wounds. However, its use for humans is not as common as other options.

Other Uses:

• Food additive (anticaking agent, firming agent) - generally recognized as safe (GRAS) by the US Food and Drug Administration (FDA) in small amounts.
• Water treatment - helps remove impurities and clarify water.
• Industrial applications - in dyeing textiles, fire retardants, and other processes.