Phosphoric acid
Phosphoric acid is a white solid. It melts easily to make a viscous liquid. It tastes sour when diluted (mixed with a lot of water). It can be deprotonated three times. It is very strong, although not as much as the other acids like hydrochloric acid. It does not have any odor. It is corrosive when concentrated. Salts of phosphoric acid are called phosphates.