Business A month since Sterlite Copper closure, neighbouring industries in limbo Updated : June 29, 2018 05:24 PM IST Estimates say Vedanta produced around 3,000 tonne of sulphuric acid per day, nearly half of which was set aside for the synthesis of phosphoric acid by fertiliser manufacturers. The shortage of sulphuric acid in Tamil Nadu escalated the price from Rs 4,000 per tonne to Rs 14,000 per tonne in just two months. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.