By itself, alum often refers to potassium alum, with the formula KAl (SO4)2·12H2O. Other alums are named after the monovalent ion, such as sodium alum and ammonium alum.

May 5, 2024 · Alum is a type of chemical compound that is commonly used in everyday and industrial applications. You'll find alum in everything from baking powder and toothpaste to cosmetics and …

Jul 15, 2025 · Alum is a naturally occurring mineral salt with powerful astringent, antibacterial, and deodorizing effects. It is used in oral hygiene, wound care, water purification, food preservation, and …

May 28, 2025 · Alum, also known as potassium aluminum sulfate, is a naturally occurring mineral compound used across cultures and industries in various ways. The most common type of alum …

Apr 5, 2024 · Alum is a granular powder or crystalline mass that is odorless, colorless, and transparent. It has a flavor that is both sweet and astringent. Its molecular weight is 458.28 grams per molecule. …

Alums occur naturally in various minerals. Potassium alum, for example, is found in the minerals kalinite, alunite, and leucite, which can be treated with sulfuric acid to obtain crystals of the alum. Most alums …

Mar 16, 2026 · Alum is a multi-purpose mineral with a wide range of domestic, medicinal, and industrial applications. Its versatility has made it a staple in many households and commercial processes for …

Alum is a type of mineral salt, most commonly potassium aluminum sulfate, that has been used for centuries in water purification, food preparation, personal care, and medicine.

A little over a hundred years ago the shortened form of alum began to be used to describe a graduate or past attendee of either gender. Although many people feel that alum is informal, it is in increasing …

Feb 23, 2025 · Alum is a naturally occurring mineral known for its antiseptic, antibacterial, and astringent properties. Found in crystal or powder form, it dissolves easily in water. It is commonly used in water …