Phosphate ions, ^3-, were once added to detergents to assist in cleaning. What function did they serve? A)Phosphate ions were relatively good at removing grease by binding with large nonpolar molecules. B)Phosphate ions were large enough to bind with the large grime molecules and remove them. C)Phosphate ions would bind to and remove calcium ions, thus acting as a water softening agent. D)Phosphate ions would reduce the growth of algae in aquatic habitats receiving the waste water.

Question

Quizplus · Accepted Answer

Phosphate ions in detergents acted as a water softening agent by binding to and removing calcium ions. This helped to improve the effectiveness of the cleaning process by reducing the formation of insoluble mineral deposits and improving the solubility of detergents. However, the use of phosphate ions in detergents also had negative environmental consequences, as the release of phosphate-rich wastewater into lakes and rivers promoted eutrophication and harmful algal blooms. Many countries have now restricted the use of phosphate in detergents to reduce these impacts.

Phosphate Ions, 3-, Were Once Added to Detergents to Assist

Phosphate Ions, ^3-, Were Once Added to Detergents to Assist