copper sulfate

• copper sulphate

copper sulfate (uncountable)

1. (inorganic chemistry) the common name for copper(II) sulfate, CuSO₄, which forms blue crystals and is used in agriculture, dyeing, electroplating and many other applications; reducing agents reduce it to the red cuprous sulfate

• cupric sulfate
• blue vitriol
• E519 when used as a preservative

• Benedict's reagent
• Bordeaux mixture
• Fehling's solution