Soda ash or sodium carbonate is extracted from the ashes of certain seaweeds?

Soda ash, also known as sodium carbonate, is extracted from the ashes of certain seaweeds or from the mineral trona. The ashes or trona are dissolved in water and then processed to isolate the sodium carbonate through filtration and purification steps. It is a key ingredient in industries such as glass production, chemicals, and detergents.