Alum - Wikipedia
网页An alum (/ ˈæləm /) is a type of chemical compound, usually a hydrated double sulfate salt of aluminium with the general formula XAl (SO. 4) 2·12 H. 2O, such that X is a monovalent cation such as potassium or ammonium. [1] . By itself, "alum" often refers to potassium alum, with the formula KAl (SO. 4) 2·12 H. 2O.
What Is Alum and How Is It Used? - ThoughtCo
网页2024年5月5日 · Alum refers to a collection of chemical compounds that are hydrated sulfate salts of aluminum and usually one other metal. Common forms of alum include hydrated potassium aluminum sulfate, ammonium aluminum sulfate, and sodium aluminum sulfate. The different compounds have different functions.
What is Alum | About Alum and Alum Substitution | McCormick
网页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 found in kitchen pantries is potassium alum.
Alum Definition & Meaning - Merriam-Webster
网页The meaning of ALUM is a potassium aluminum sulfate KAl(SO4)2·12H2O or an ammonium aluminum sulfate NH4Al(SO4)2·12H2O used especially for its astringent and styptic properties. How to use alum in a sentence.
13 Surprising Alum Powder Uses and Benefits - The Good Human
网页2024年4月5日 · 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. Egypt, Italy, England, Germany, and India are the other countries that have alum mines.
What is alum used for in cooking? - Chef's Resource
网页Its ability to improve crispness, texture, and preservation makes it a popular choice for pickling, baking, and cheese making. While it is important to use alum in moderation, incorporating it into your cooking can undoubtedly elevate the quality and enjoyment of …
Alum | Definition, Uses, Formula, & Facts | Britannica
网页alum, any of a group of hydrated double salts, usually consisting of aluminum sulfate, water of hydration, and the sulfate of another element. A whole series of hydrated double salts results from the hydration of the sulfate of a singly charged cation (e.g., K +) and the sulfate of any one of a number of triply charged cations (e.g., Al 3+).
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