Chemistry: Hazard symbols

• What are hazard symbols used for?


  To indicate possible dangers linked to using substances or doing experiments
• What does the corrosive hazard symbol indicate?


  • The substance attacks and destroys living tissue, such as skin and eyes
• What does the irritant hazard symbol indicate?


  • The substance is not corrosive but can make the skin go red or form blisters
• What does the toxic hazard symbol indicate?


  • The substance can cause death if swallowed or breathed in
• What does the flammable hazard symbol indicate?


  • The substance catches fire easily
• What does the explosive hazard symbol indicate?


  • The substance may explode if it comes into contact with flame or heat
• What does the dangerous to the environment hazard symbol indicate?


  • The substance may pollute the environment
• What are some ways to reduce risks from hazardous substances?


  • Wearing eye protection
  • Avoiding contact with skin
  • Wearing gloves
  • Wearing a mask or using a fume cupboard
  • Keeping away from flames and sparks
  • Taking care with disposal
• Why is it important to follow your teacher's safety advice in practical work?

  To ensure safety and minimize risks while conducting experiments
• What should you do if you encounter hot apparatus during an experiment?


  Take care not to touch it, even if it does not look hot
• What are the key hazards associated with hazardous substances?

  • Corrosive: Destroys living tissue
  • Irritant: Causes skin irritation
  • Toxic: Can cause death
  • Flammable: Catches fire easily
  • Explosive: May explode with heat
  • Dangerous to the environment: Can pollute