✅ Why in News: The Supreme Court said a preliminary enquiry by the CBI into the firecracker industry, including in Tamil Nadu, revealed rampant violation of its ban on use of toxic ingredients like barium and its salts.
✅ Barium is a chemical element having atomic number 56.
✅It is a soft, silvery alkaline earth metal.
✅Because of its high chemical reactivity, barium is never found in nature as a free element.
▪️Applications:
✅As a component of high-temperature superconductors and electro ceramics.
✅Added to steel and cast iron to reduce the size of carbon grains
✅ Added to fireworks to impart a green colour.
▪️Harmful effects:
✅ Soluble barium compounds are poisonous.
✅In higher doses, they affect the nervous system, causing cardiac irregularities, tremors, weakness, anxiety, etc.
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