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ALUM definition: 1. a chemical substance containing aluminium used in dyeing (= changing the colour of something…. Learn more.
- Znaczenie Alum, Definicja W Cambridge English Dictionary
alum definicja: 1. a chemical substance containing aluminium...
- English (US)
alum noun [C] (past member) short for alumnus : someone who...
- Alumnae
ALUMNAE definition: 1. plural of alumna 2. plural of alumna...
- Alumni
ALUMNI definition: 1. plural of alumnus 2. plural of alumnus...
- Aluminium Foil
ALUMINIUM FOIL definition: 1. shiny, metal material, as thin...
- Znaczenie Alum, Definicja W Cambridge English Dictionary
18 Οκτ 2024 · 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.
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.
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.
alum. a substance formed from aluminium and another metal, used, for example, to prepare leather and to change the colour of things. Definition of alum noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
6 Νοε 2017 · alum noun [C] (past member) short for alumnus : someone who studied at a particular school, college, or university: Paul, although an Englishman, is an Arizona State alum. The interviewer asks a few questions, including whether the applicant is the child of an alum.
Any of various crystalline double salts of a trivalent metal (such as aluminum, chromium, or iron) and a monovalent metal (such as potassium or sodium), especially aluminum potassium sulfate. Alum is widely used in industry as a hardener and purifier, and in medicine as an emetic and to stop bleeding. Discover More.
