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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

When the researchers conducted a sampling spree again in 2021, they found that the use of lead chromate had practically disappeared.

From Salon • Aug. 2, 2023

The chromium in lead chromate poses a health risk, too.

From Salon • Aug. 2, 2023

By boiling white lead with chromate of soda and subsequently treating with small quantities of sulphuric acid, American vermilion, or basic lead chromate, is prepared.

From Paint Technology and Tests by Gardner, Henry A.

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