You take a dose when heartburn symptoms occur. Popular antacids are Gaviscon (alginic acid/sodium bicarbonate/aluminum hydroxide/magnesium carbonate), Mylanta (aluminum hydroxide/magnesium hydroxide), ...
To form the final product, the team heated up a mixture of a precursor material and sodium hydroxide to as high as 600°C, maintained it at that temperature for a select period, then cooled it to ...