Chemistry Lab Safety Rules and Techniques

Overview

• Chemistry labs provide hands-on learning through working with new equipment and techniques.
• Safety is crucial due to potential dangers; strict safety procedures must be followed.

Handling Chemicals Safely

• Use small, controllable containers to prevent accidents.
• Mix chemicals only under teacher instruction.
  • Read instructions carefully and verify chemical labels.
  • Follow specific mixing rules, e.g., add acid to water, not the reverse.

Preventing Contamination

• Use clean glassware and avoid pouring back into reagent bottles.
• Dispose of excess chemicals in designated waste containers.

Dealing with Spills

• Report spills immediately to the teacher.
• Use absorbent materials like kitty litter to contain larger spills.

Waste Disposal

• Separate waste types: chemicals, uncontaminated waste, broken glass.

Equipment Handling

Bunsen Burner

• Check gas hoses for cracks and ensure secure fittings.
• Adjust flame to a safe blue cone with a proper air mix.
• Turn off gas for safety if issues arise or if there's a gas smell.

Glassware

• Inspect for cracks before heating.
• Use appropriate methods like wire screens or water baths for heating.

Thermometers

• Don't shake thermometers; handle them gently.
• Use appropriate thermometer types based on temperature range.

Clothing and Personal Safety

• Wear proper clothing: long pants/skirt, lab apron, leather shoes.
• Remove accessories: rings, watches, and contact lenses.
• Protective gear: goggles, gloves based on chemical type.

Behavioral Rules

• No fooling around; maintain focus and order.
• Keep aisles clear; avoid contamination with makeup or food.

Emergency Procedures

• First Aid: Clean and dry cuts, rinse chemical spills from eyes and skin immediately.
• Fire Safety: Use extinguishers or showers; follow "stop, drop, roll" for clothing fires.

Conclusion

• The chemistry lab is a safe learning environment with proper attention and adherence to safety rules.