Purity and Formulations

• How do impurities affect an element

  Lower the melting point

  Increase boiling point

  Increase the range over which a substance melts or boils
• Test for purity

  Heat it until it melts or boils at specific temp to prove if its pure
• Formulation

  Made from precise amounts of different components.

  It has a particular function
• 4 examples of formulations

  Cleaning products

  Fuels

  Cosmetics

  Medicines