Uses of some Acids

Hydrochloric acid

• Removal of rust in steel objects
• Making gelatin from bony materials in food technology
• Making aqua regia ( aqua regia is a mixture of concentrated nitric acid and concentrated hydrochloric acid mixed in the proportion of 1 : 3. Aqua regia is used to dissolve metals like gold and platinum)

Sulphuric acid

• Production of fertilizers such as ammonium sulphate and triple superphosphate
• Making battery acid ( Battery acid is diluted sulphuric acid)
• Production of paints, plastics and detergents
• Concentrated sulphuric acid is used as a dehydrating agent
• Drying gases (For drying a gas, the relevant gas is bubbled through concentrated sulphuric acid)

Acetic acid

• Processing food where vinegar is used
• Coagulation of rubber latex
• Production of photographic films
• Used in the paper industry
• Production of synthetic threads in textile industry


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