The word chromate is spelled using the IPA phonetic transcription as /ˈkrəʊmeɪt/. The first syllable "kro" is pronounced as a short "o" sound with an "r" sound following it. The second syllable "mate" is pronounced as a long "a" sound followed by a "t" sound. Chromate refers to a salt or ester of chromic acid that contains the chromate ion. It's commonly used in industrial applications such as pigments, dyes, and corrosion inhibitors.
Chromate is a noun that refers to any salt or ester of chromic acid. It is an inorganic compound containing the element chromium in its hexavalent state. The term chromate is derived from the Latin word "chroma," meaning color, owing to the distinct colors exhibited by various chromates.
Chromates are known for their versatile chemical properties and are commonly used in a range of industrial applications. They play a crucial role in the manufacturing of pigments, dyes, and colored glass due to their intense hues. Chromates are also employed in the production of corrosion inhibitors, as they possess the ability to form a protective layer on metal surfaces, preventing oxidation and degradation.
In addition to their widespread use in industrial settings, chromates have significance in analytical chemistry. They are often utilized as reagents to detect and quantify certain chemical substances in samples. The color changes exhibited by chromates upon reaction with specific compounds aid chemists in identifying and measuring the concentration of these substances accurately.
However, chromates pose environmental concerns due to their toxic nature. Hexavalent chromium, a form of chromate, is a known carcinogen and can cause severe health issues if exposure occurs. Consequently, the use of chromates in various applications has been restricted or replaced with safer alternatives in many regions across the globe.
A compound of chromic acid with a base.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "chromate" comes from the Greek word "chroma", meaning "color". Chromate refers to a compound containing the chromate ion (CrO4^2-), which is notable for its yellow color.