Sodium hydroxide

Sodium hydroxide

• A strong base
• Stock solutions are 5 N and 1 N
• Molecular weight 40.00
• Exothermic reaction on solution
• Stock solutions should be stored in plastic bottles, rather than glass.
  • Glass bottles are etched by strong bases over long periods of time.
• Stock solutions absorb carbon dioxide from the air, and gradually become neutralized.
  • Check normality every year, or remake solutions.
• Very caustic, wear gloves during use. Wash extensively if spilled. A soap-like feel indicates that your skin has come in contact with the solution.
• Neutralize with acid prior to disposal down the drain.