Xanthate

Part of speech: noun

Definitions

1. A chemical compound containing the xanthate group used primarily as a reagent in organic synthesis or as a flotation agent in mineral processing
2. A type of salt or ester derived from xanthic acid employed in chemical reactions and in separating minerals by flotation
3. A compound characterized by the presence of a xanthate functional group, commonly utilized in laboratory procedures and ore extraction techniques

Etymology: Xanthate gets its name from a Greek word for yellow. "Xanth-" comes from the Greek "xanthos," meaning yellow or tawny, and the chemistry it names is tied to a yellow-coloured acid, xanthic acid. The "-ate" ending is the ordinary chemical suffix for a salt or ester, the same ending found in words like sulphate or nitrate. So the word is a straightforward chemical coinage: a colour-based root joined to a standard suffix. The Greek root turns up across English science. "Xanthoma" (a yellowish skin growth) and "xanthophyll" (a yellow plant pigment) draw on the same element, which is why chemists reached for it when naming compounds of this yellow-associated acid. The word's use is practical rather than poetic: xanthates are employed in chemical reactions, and they are used to separate minerals by flotation, where they help valuable ore particles attach to air bubbles so they can be skimmed off.

Synonyms: thioester, ester, salt