Basically, a small chunk of calcium carbide and a little bit of water is placed in a metal milk churn. The carbide decomposes into acetylene and a flame is held up to a small hole in the milk churn.

Calcium carbide is commonly used for ripening fruits like mango, which releases acetylene gas, which contains the harmful elements arsenic and phosphorus. These dangerous elements are also known ...

“The calcium carbide sludge is a waste product from acetylene gas plants and fly ash is a waste generated from thermal plants in huge quantities, both are causing pollution to land and wate ...