Which chemical compound is regarded as the Blue vitriol that is chiefly used as an insecticide, mordant and a fungicide?

The correct answer is Copper Sulphate.

Key Points

• Copper Sulphate, commonly known as Blue Vitriol, is a chemical compound with the formula CuSO₄.
• The compound is widely used as a fungicide, insecticide, and herbicide in agricultural practices.
• Copper Sulphate exists in its pentahydrate form (CuSO₄·5H₂O), which gives it a distinct blue color.
• It is extensively used as a mordant in the textile industry to fix dyes to fibers.
• Other applications include its use in electroplating processes and as a reagent in laboratories.

Additional Information

• Fungicides:
  • Fungicides are chemical or biological agents used to kill or inhibit fungi and fungal spores.
  • Copper-based fungicides like Copper Sulphate are effective against plant diseases such as mildew and blight.
• Mordants:
  • A mordant is a substance used to fix dyes onto fabrics, ensuring color durability and retention.
  • Copper Sulphate is a commonly used mordant in the textile and leather industries.
• Industrial Uses:
  • Copper Sulphate is used in electroplating to coat surfaces with a thin layer of copper.
  • It is also utilized in the preparation of pigments like copper-based blues and greens.
• Environmental Concerns:
  • Excessive use of Copper Sulphate can lead to soil and water contamination.
  • It is toxic to aquatic life if discharged untreated into water bodies.