chromate

American  

[kroh-meyt] / ˈkroʊ meɪt /

noun

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

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chromate British  

/ ˈkrəʊˌmeɪt /

noun

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

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chromate Scientific  

/ krō′māt′ /

1. A chemical compound containing the group CrO ₄.

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Etymology

Origin of chromate

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

Example Sentences

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

Only about 5 percent of 157 samples were found to be adulterated with lead chromate, down from nearly 50 percent before.

From Salon • Aug. 2, 2023

Although he didn't know the precise health impacts of the lead chromate, he said, "it's common sense that chemicals are harmful."

From Salon • Aug. 2, 2023

Unfortunately this zinc chromate was added to a formula containing a large percentage of lithopone, and the destruction of the lithopone to a great extent affected the value of this test.

From Paint Technology and Tests by Gardner, Henry A.