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Make Hydrochloric Acid

We show how to make hydrochloric acid from sodium bisulfate and table salt. The synthesis is rather simple, we generate hydrogen chloride gas by mixing together 140g of sodium bisulfate and 60g of sodium chloride salt and then heating. 20mL of water can be added to lower the temperature required but this is optional. Hydrogen chloride gas will be produced. This gas is lead into distilled water to produce hydrochloric acid. Be careful though, hydrogen chloride is so soluble that the water will pull itself into the tube trying to absorb it. In the video i use an elaborate back-flow prevention system to prevent loss of the product. Sodium bisulfate is available as a pH lowering chemical. 30mL of sulfuric acid may be used as a replacement if you have it. Although if you had that, you probably don't need hydrochloric acid.