mercury iodide

noun

Definition of mercury iodide

: either of two iodides of mercury:
a : a yellow amorphous powder Hg2I2 that turns greenish on exposure to light

called also mercurous iodide

b : a red crystalline poisonous salt HgI2 that changes to a yellow crystalline modification when heated above 126° C and that is used chiefly in medicine

called also mercuric iodide

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Cite this Entry

“Mercury iodide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mercury%20iodide. Accessed 20 Oct. 2021.

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