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.

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 …

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 …

Dec 3, 2025 · Alum represents a class of chemical compounds utilized for millennia, dating back to ancient Egyptian practices for purification and preservation. This group of chemicals is highly …

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 …

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 ammonium (NH 4+). …

Jul 23, 2025 · What is Alum? Alum is an inorganic compound that exists as a hydrated form of double salt. Alum is composed of aluminum, water molecules, and sulphates. Alums are normally found in …

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 salt. There are …

Alum refers to a class of chemical compounds, primarily double sulfates, with potassium aluminum sulfate being the most commonly known form. These compounds can be naturally occurring or …