Sodium thiosulphate and hydrochloric acid is a chemical reaction that produces a cloudy solution. This reaction occurs because the sodium thiosulphate and hydrochloric acid molecules interact with each other, resulting in the formation of new molecules.
Sodium thiosulphate, also known as hypo, is a chemical compound with the formula Na2S2O3. It is a white, crystalline solid that is soluble in water and is commonly used as a laboratory reagent and in various industrial processes.
Hydrochloric acid, also known as muriatic acid, is a strong acid with the formula HCl. It is a clear, colorless liquid that has a pungent, corrosive smell and is commonly used in the production of fertilizers, dyes, and detergents.
When sodium thiosulphate and hydrochloric acid are mixed together, they react to form a cloudy solution due to the formation of sulfur dioxide, a colorless gas, and water. The reaction can be represented by the following equation:
Na2S2O3 + 2HCl -> 2NaCl + SO2 + H2O
The cloudiness of the solution is caused by the formation of tiny sulfur dioxide bubbles, which are dispersed throughout the solution. As the sulfur dioxide bubbles rise to the surface of the solution, they become visible and give the solution a cloudy appearance.
Overall, the chemical reaction between sodium thiosulphate and hydrochloric acid is a common and well-known example of a chemical reaction that produces a cloudy solution. The reaction is often used in educational settings to demonstrate the principles of chemical reactions and the formation of new substances.