Chemistry Issue or Topic
Could someone please explain why phosphates are used in cleaning?
Answer the Question
Phosphates (covalently attached to hydrocarbons) are amphipathic. That means that they have both a polar end and a nonpolar end. That allows the nonpolar end to stick to the oily greasy stuff, and the polar end to stick to the water which washes it away. Water won't clean oil, but use a soap (phosphates work best, except they're bad for the environment), and the oil seems to wash away with the water!
Tips and Tricks
- Low phosphate cleaners also are available.
