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what is the uses of sulphuric acid?

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what is the uses of sulphuric acid?
sulphuric acid is one of the most important industrial chemicals.A bout 140million tonnes are manufactured in the world every year.It is used in the most industies ranging from agriculture fertilisers to paints,soap and the cleaning of rust.The main use of sulphuric acid is producing fertilisers,particularly superphosphate and ammoniumsulphate