methylene iodide

noun, Chemistry.

a yellow liquid, CH ₂ I ₂ , soluble in alcohol and ether: used for the separation of mixtures of minerals and in organic synthesis.

Also called diiodomethane.

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Based on the Random House Dictionary, © Random House, Inc. 2016.
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Historical Examples

methylene iodide, CH2I2, has a density of 3.33, and may be diluted with benzene.

Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 2 Various
But methylene iodide further possesses the valuable property of mixing easily with benzene, which is a very light liquid.

Scientific American Supplement, No. 1082, September 26, 1896 Various

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