chromate

/'kroumit/

Thân thiện

A chemist adds a few drops of chromate solution to a test tube.

Definition

1. Noun:
   • Any salt or ester of chromic acid: A chemical compound containing the chromate anion (CrO₄²⁻), typically characterized by a yellow color and used in various industrial applications.

Usage

• As a chemical term: Used to describe specific inorganic compounds in chemistry, materials science, and industrial processes.
  • Lead chromate is a pigment historically used in yellow paints.
  • The wastewater was tested for chromate contamination.

Advanced Usage

• "Chromate conversion coating": A type of chemical treatment applied to metals like aluminum or zinc to provide corrosion resistance and serve as a paint primer.
  • The aluminum parts underwent a chromate conversion coating process.

Variants and Related Words

• Dichromate (n): A salt containing the dichromate anion (Cr₂O₇²⁻), such as potassium dichromate.
• Chromium (n): The metallic element (Cr) from which chromates are derived.
• Chromic acid (n): The acid (H₂CrO₄) from which chromate salts are formed.

Synonyms

• Chromate salt: A more descriptive synonym.
• Chromate ester: Refers specifically to the organic esters of chromic acid.

Related Phrases

• Chromate ion: The anionic group (CrO₄²⁻) itself.
• Chromate pigment: A pigment containing chromate compounds.

Học thuật

Noun

1. any salt or ester of chromic acid