The Renin–angiotensin process regulates the level of fluid and sodium focus in the human body. Reduction of blood pressure and sodium focus while in the kidney bring about the creation of renin, which in turn creates aldosterone and angiotensin, which stimulates the reabsorption of sodium back in to the bloodstream. https://www.tjcyindustrialchem.com/news/sodium-chlorite-uses-and-the-difference-from-chlorine.html