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aluminum sulfate
noun
: a white salt Al2(SO4)3 usually made by treating bauxite with sulfuric acid and used in making paper, in water purification, and in tanning
Examples of aluminum sulfate in a Sentence
Recent Examples on the Web
Regulators suspect a significant portion of Stauffer’s waste is alum mud, a radioactive sludge that is a byproduct of producing aluminum sulfate.
—Tony Briscoe, Los Angeles Times, 14 May 2024
The most common, reliable, and affordable treatment is coagulation/filtration, which uses aluminum sulfate to consolidate both inorganic mercury and methylmercury into a solid that can be removed from the water and summarily disposed of at a hazardous waste site.
—Gia Mora, Treehugger, 8 Mar. 2023
Chesterton firefighters applied oil dry to the roadway to contain leaking fluids from the truck and put up a light tower, not clearing the scene until 5:54 a.m. The truck was hauling aluminum sulfate, a nontoxic powder used in the purification of drinking water.
—Amy Lavalley, chicagotribune.com, 13 Apr. 2021
Savvy consumers will notice potassium aluminum sulfate listed in the ingredients of this deodorant, which is a mineral salt with astringent and antimicrobial properties.
—Jacqueline Saguin, Good Housekeeping, 19 Apr. 2022
To make the iron in the soil more readily available, the soil should be treated with an acidifying agent such as sulfur, iron sulfate (copperas), aluminum sulfate or a liquid soil acidifier.
—Dan Gill, NOLA.com, 27 Jan. 2021
At this point, the water still has the tea-like color of river water, which the plants eliminate using aluminum sulfate.
—Eric Roper, Star Tribune, 9 Oct. 2020
To encourage your hydrangeas to bloom blue, apply aluminum sulfate now and again in March, following package directions.
—Dan Gill, NOLA.com, 30 Sep. 2020
Maine Auburn: Workers are going to be putting aluminum sulfate in Lake Auburn this week to fight algae.
—USA TODAY, 9 July 2019
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Word History
First Known Use
1868, in the meaning defined above
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Cite this Entry
“Aluminum sulfate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aluminum%20sulfate. Accessed 5 Nov. 2024.
Kids Definition
aluminum sulfate
noun
: a white salt made from bauxite and used in making paper, purifying water, and tanning
Medical Definition
aluminum sulfate
noun
: a colorless salt Al2(SO4)3 that is a powerful astringent and is used as a local antiperspirant and in water purification
More from Merriam-Webster on aluminum sulfate
Britannica.com: Encyclopedia article about aluminum sulfate
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