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chromium
[ kroh-mee-uhm ]
noun
- a lustrous, hard, brittle, metallic element used in alloy steels for hardness and corrosion resistance, as in stainless steel, and for plating other metals: chromium salts are used as pigments and mordants. : Cr; : 51.996; : 24; : 7.1.
chromium
/ 藞办谤蓹蕣尘瑟蓹尘 /
noun
- a hard grey metallic element that takes a high polish, occurring principally in chromite: used in steel alloys and electroplating to increase hardness and corrosion-resistance. Symbol: Cr; atomic no: 24; atomic wt: 51.9961; valency: 2, 3, or 6; relative density: 7.18鈥7.20; melting pt: 1863卤20掳C; boiling pt: 2672掳C
chromium
- A hard, shiny, steel-gray metallic element that is rust-resistant and does not tarnish easily. It is used to plate other metals, to harden steel, and to make stainless steel and other alloys. Atomic number 24; atomic weight 51.996; melting point 1,890掳C; boiling point 2,482掳C; specific gravity 7.18; valence 2, 3, 6.
- See Periodic Table
亚洲网紅露点 History and Origins
Origin of chromium1
Example Sentences
At the Santa Monica Pier and Dockweiler Beach, both of which are south of the burn scar, levels of both lead and chromium were roughly triple California鈥檚 safety threshold for marine life.
In 2021, for example, the state legislature adopted rules allowing for wood coated with toxic metals like chromium and arsenic to be taken to nonhazardous waste facilities.
He oversaw several major initiatives, including the Biden administration's ban on Red No. 3 dye and the FDA鈥檚 investigation of applesauce contaminated with elevated levels of lead and chromium.
One in particular 鈥 Phos-Chek LC-95W 鈥 had 鈥減otentially alarming鈥 concentrations of several metals, including chromium, cadmium and vanadium, he said, adding that the substance could be classified as hazardous waste under federal and California regulations.
The latest announcement comes after the FDA issued a public health alert back in March on six brands of cinnamon products that had elevated levels of lead and chromium.
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