Chelating Agents

A chelating agent is a molecule with multiple binding sites. These binding sites can attach to other atoms or molecules, such as metal ions. Chelating agents can prevent the metal ions they bind to from reacting with other molecules by keeping them in solution.

What Is Phosphoric Acid?

Phosphoric acid is a mineral acid with the chemical formula H₃PO₄. It is a colorless, odorless, and viscous liquid. In its pure form, it appears as white crystals that melt at 42 °C.

Uses

  • Fertilizers: The most common use of phosphoric acid is in the production of fertilizers. It provides the essential phosphorus element for plant growth.
  • Food: Used as an acidity regulator in cola and other carbonated beverages. It is also found in baking powders.
  • Cleaning: Used to clean rust from metal surfaces and in detergents.
  • Other: Used in pharmaceuticals, toothpaste, textiles, and paper industries.

Characteristics

  • Strong Acid: Can cause irritation if it comes into contact with skin and eyes.
  • Non-Toxic: Harmful if swallowed, but not fatal.
  • Non-Volatile: Does not evaporate into the air.
  • Three Basic Hydrogens: Can form three different salts.
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