Food-grade phosphoric acid ( additive E338) is used to acidify
foods and beverages such as various colas, but not without
controversy regarding its health effects. It provides a tangy or
sour taste and, being a mass-produced chemical, is available
cheaply and in large quantities.
Phosphoric acid is used in dentistry and orthodontics as an etching
solution, to clean and roughen the surfaces of teeth where dental
appliances or fillings will be placed. Phosphoric acid is also an
ingredient in over-the-counter anti-nausea medications that also
contain high levels of sugar ( glucose and fructose) . This acid is
also used in many teeth whiteners to eliminate plaque that may be
on the teeth before application.
phosphoric acid Images