cobalt chloride


Definition of cobalt chloride

: a chloride of cobalt especially : the dichloride CoCl2 that is blue when dehydrated, turns red in the presence of moisture, and is used to indicate humidity

Examples of cobalt chloride in a Sentence

Recent Examples on the Web The silica used incorporates cobalt chloride, which helps to retain both the shape and color of the flowers. Julia Sayers,, "Learn how to preserve your wedding flowers from the experts," 7 Mar. 2018

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

First Known Use of cobalt chloride

1869, in the meaning defined above

Keep scrolling for more

Learn More about cobalt chloride

Time Traveler for cobalt chloride

Time Traveler

The first known use of cobalt chloride was in 1869

See more words from the same year

Statistics for cobalt chloride

Cite this Entry

“Cobalt chloride.” Dictionary, Merriam-Webster, Accessed 5 Dec. 2020.

More from Merriam-Webster on cobalt chloride Encyclopedia article about cobalt chloride

Comments on cobalt chloride

What made you want to look up cobalt chloride? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
Spell It

Can you spell these 10 commonly misspelled words?


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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