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chromate

American

[kroh-meyt] / ˈkroʊ meɪt /

noun

a salt of chromic acid, as potassium chromate, K 2 CrO 4 .

chromate British

/ ˈkrəʊˌmeɪt /

noun

any salt or ester of chromic acid. Simple chromate salts contain the divalent ion, CrO 4 ^2– , and are orange

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

chromate Scientific

/ krō′māt′ /

A chemical compound containing the group CrO ₄.

Etymology

Origin of chromate

First recorded in 1810–20; chrom(ic acid) + -ate ²

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Especially notorious is lead chromate mixed in with cinnamon to achieve a bright colour or bulk out the powders.

From BBC • Feb. 9, 2026

The lead-to-chromium ratio found in the factory is consistent with lead chromate, a compound that has been previously reported as a contaminant in certain spices, officials said.

From Seattle Times • Jan. 5, 2024

Lead chromate is a chemical used in paints to, for instance, make school buses yellow, and it can enhance the radiance of turmeric roots, making them more attractive to buyers.

From Salon • Aug. 2, 2023

At home, he was feeding his family turmeric polished with lead chromate and immediately stopped once he learned the health effects.

From Salon • Aug. 2, 2023

Poudre Blanche Cornil: ammonium nitrate, alkali nitrate, nitronaphthalene, lead chromate.

From The New Gresham Encyclopedia Volume 4, Part 3: Estremoz to Felspar by Various

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023