magnesium chloride

noun

: a bitter deliquescent salt MgCl2 used especially as a source of magnesium metal

Examples of magnesium chloride in a Sentence

Recent Examples on the Web
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There are several ice melts on the market with different chemical compositions, such as magnesium chloride (Mg2Cl), potassium chloride (KCl), and calcium chloride (CaCl2). Markis Hill, Kansas City Star, 25 Feb. 2026 Purple ice melter is a blend of sodium acetate, magnesium chloride, calcium chloride, potassium chloride, and a non-staining purple coloring. Timothy Dale, The Spruce, 16 Feb. 2026 For those who live in colder climates, stocking up on magnesium chloride is a smart way to prepare for a salt shortage. Olivia McIntosh, Martha Stewart, 8 Feb. 2026 Use products that contain magnesium chloride or calcium chloride for better results in colder temperatures. Karen Brewer Grossman, Southern Living, 23 Jan. 2026 See All Example Sentences for magnesium chloride

Word History

First Known Use

1866, in the meaning defined above

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

Cite this Entry

“Magnesium chloride.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnesium%20chloride. Accessed 13 Mar. 2026.

Kids Definition

magnesium chloride

noun
: a bitter salt that occurs dissolved in seawater and is used in producing magnesium metal

Medical Definition

magnesium chloride

noun
: a bitter crystalline salt MgCl2 used especially to replenish body electrolytes

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