By itself, alum often refers to potassium alum, with the formula KAl (SO. 2O. Other alums are named after the monovalent ion, such as sodium alum and ammonium alum.

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 …

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 …

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 …

Sep 20, 2025 · 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 …

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 …

Jan 29, 2025 · At its core, an alum is a double salt, typically formulated as XAl (SO 4) 2 ·12H 2 O, where X represents a monovalent cation such as potassium (K +), sodium (Na +), or …

Feb 12, 2025 · Alum is a type of chemical compound generally composed of a double sulfate salt that contains aluminum. The most common form of alum is potassium aluminum sulfate, with …

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 …

Aug 9, 2023 · Alum is an inorganic compound consisting of water molecules, aluminum, other metals besides aluminum, and sulfates. Alum, in its hydrated state, is classified as a double …