calcium chloride


: a white deliquescent salt CaCl2 used in its anhydrous state as a drying and dehumidifying agent and in a hydrated state for controlling dust and ice on roads

Example Sentences

Recent Examples on the Web Kentucky has stockpiled more than 300,000 tons of salt for the roads, along with more than 1 million gallons of brine and 1 million gallons of calcium chloride to prevent ice on roadways. Rae Johnson, The Courier-Journal, 21 Dec. 2022 With hygroscopic seeding, water-drawing particles—often some variation of salt, such as calcium chloride—are released from planes flying at low altitudes. Ian Graber-stiehl, Discover Magazine, 24 Jan. 2017 If water is trapped uphill of the icicles, a roof rake and nylon stockings stuffed with a calcium chloride ice melt product can help remove the ice dam, according to a tip sheet from the Travelers insurance company. Jeanne Huber, Washington Post, 29 Dec. 2022 Assistant Highway Superintendent Darren Godby said seven big dump trucks will plow then drop a succession of salt and calcium chloride, while three to four miniature dump trucks will plow and drop salt. Carrie Napoleon, Chicago Tribune, 21 Dec. 2022 But beet juice can upset the balance of nutrients in wetlands while the other salt alternatives like magnesium chloride and calcium chloride can also cause a bevy of problems, Relyea says. Joshua Rapp Learn, Discover Magazine, 10 Feb. 2022 The snow team uses a salt and calcium chloride mixture to create a slushy mix on the roads for safer driving. Rae Johnson, The Courier-Journal, 22 Dec. 2022 Portage’s large dump trucks will first drop straight white road salt, which melts the ice, and then immediately follow with a spray of calcium chloride which keeps the road warm and binds the salt to it. Carrie Napoleon, Chicago Tribune, 21 Dec. 2022 Some people spray leaves with a dilute calcium chloride solution or even leaves and fruit with milk! oregonlive, 14 Aug. 2022 See More

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

Word History

First Known Use

1866, in the meaning defined above

Time Traveler
The first known use of calcium chloride was in 1866

Dictionary Entries Near calcium chloride

Cite this Entry

“Calcium chloride.” Dictionary, Merriam-Webster, Accessed 8 Feb. 2023.

Kids Definition

calcium chloride

: a salt that absorbs moisture from the air and is used to dry other substances

Medical Definition

calcium chloride

: a salt CaCl2 used in medicine as a source of calcium and as a diuretic

More from Merriam-Webster on calcium chloride

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Commonly Confused Words Quiz

  • vector image of a face with thought expression
  • I went to the ______ store to buy a birthday card.
True or False

Test your knowledge - and maybe learn something along the way.

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?