Chemistry Lab Safety and Procedures

Introduction to Chemistry Lab

• Chemistry Lab focuses on learning through hands-on activities.
• Importance of adhering to strict safety procedures to prevent accidents.

Safety with Chemicals

• General Precautions:
  • Always use small containers for easy control.
  • Inform teacher immediately in case of any accident.
• Mixing Chemicals:
  • Mix only under teacher's instruction.
  • Read instructions and chemical labels thoroughly.
  • Follow the rule: Add Acid (AA) to water, not the reverse.
• Handling Spills:
  • Use a work tray to contain spills.
  • Report spills immediately.
• Contamination Prevention:
  • Use only clean glassware.
  • Dispose of excess chemicals properly.
• Hazardous Vapors:
  • Use a fume hood for volatile chemicals.

Equipment Safety

• Bunsen Burners:
  • Check gas hoses for cracks and ensure secure connections.
  • Adjust the gas flame properly.
  • Do not use with volatile organic liquids.
• Glassware:
  • Check for cracks before heating.
  • Use proper tools like beaker tongs for handling hot glassware.

Thermometer Use

• Use thermometers within their temperature range.
• Lay thermometers safely on a towel or wire screen.
• Let the teacher handle cleanup of broken thermometers.

Handling Glass Tubing

• Use an inserter or lubricate tubing with gloves for safety.
• Avoid forceful insertion to prevent breakage and injury.

Centrifuge Use

• Balance the centrifuge by placing equally filled test tubes.
• Do not stop it with your hands.

Personal Safety Equipment

• Wear appropriate clothing and protective gear:
  • Sturdy, natural fabrics, long pants, and closed-toe shoes.
  • Tie back long hair.
  • Remove jewelry.
  • Wear goggles and appropriate gloves.

Laboratory Conduct

• Behavior: No fooling around; keep aisles clear.
• Hygiene: No makeup or food in the lab.

Emergency Procedures

• Immediate first aid for cuts and chemical spills.
• Use eyewash stations and safety showers as needed.
• Fire safety: Use covers or extinguishers; evacuate if necessary.

Conclusion

• Emphasize the importance of following safety rules for a rewarding lab experience.