aluminum sulfate


Definition of aluminum sulfate

: 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 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,, "Even on evergreens, it's natural for leaves to yellow and drop. Here's how to tell if it's a problerm," 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, "How do cities make Mississippi River water safe to drink?," 9 Oct. 2020 To encourage your hydrangeas to bloom blue, apply aluminum sulfate now and again in March, following package directions. Dan Gill,, "Pink or blue for hydrangea blooms: The amount of alumium ions in the soil makes the difference," 30 Sep. 2020 Maine Auburn: Workers are going to be putting aluminum sulfate in Lake Auburn this week to fight algae. USA TODAY, "Ink library, parking barnacles, lunar training grounds: News from around our 50 states," 9 July 2019 The aluminum sulfate will be applied to three-quarters of the lake starting Wednesday. USA TODAY, "Ink library, parking barnacles, lunar training grounds: News from around our 50 states," 9 July 2019 Potential Solutions Treatments of aluminum sulfate are sometimes used to fight algal blooms in small lakes or canals, but is not effective in the much larger ocean. Jenny Howard, National Geographic, "Red tides, explained," 5 July 2019 Scores of fish died in the lake after the town began using a state-approved, low-dose aluminum sulfate treatment to lower the lake's pH levels and improve water clarity, Wilmington NBC-TV affiliate WECT reported. Joe Marusak, charlotteobserver, "Chemical didn't kill fish in eastern NC lake. Another culprit did, state says | Charlotte Observer," 16 May 2018 The town received state approval April 11 to use a low-dose aluminum sulfate treatment to improve water clarity and reduce the pH level in the lake, Mayor Goldston Womble Jr. said in an April 20 letter on the town's website. Joe Marusak, charlotteobserver, "Town put chemical into popular NC fishing lake. Then the fish began to die. | Charlotte Observer," 7 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aluminum sulfate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of aluminum sulfate

1868, in the meaning defined above

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The first known use of aluminum sulfate was in 1868

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Cite this Entry

“Aluminum sulfate.” Dictionary, Merriam-Webster, Accessed 5 May. 2021.

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More Definitions for aluminum sulfate

aluminum sulfate


Medical Definition of aluminum sulfate

: a colorless salt Al2(SO4)3 that is a powerful astringent and is used as a local antiperspirant and in water purification

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