Chemistry Laboratory Responsibilities

Study Notes

This manual provides guidelines for safe laboratory practices in a chemistry setting.
Safety in the science classroom is prioritized.
Students are responsible for their own safety and the safety of others.

Hazardous chemicals are used in many laboratory experiments.
Always wear safety glasses, goggles, or eye shields in labs.
Contact lenses are prohibited.
Ties back long hair, to avoid accidental contact with chemicals or flames.
Avoid using radios, tape players, CD players or any other similar devices in the lab.
Do not taste, smell, or touch chemicals without explicit instructions.
Treat all chemicals as potentially hazardous. Use tweezers to handle them.
Protective aprons or coats are recommended to protect outer clothing.

In the event of an accident prioritize the safety and well-being of the individual injured.
Clean up any hazardous chemical spills immediately and notify the instructor.
Wash affected areas with water thoroughly if contact with chemicals occurs.
Immediately flush eyes with the eyewash fountain if chemicals get in the eyes.
If a spill affects a large area, immediately use the safety shower.
Report any spills or accidents to your instructor.

Be on time and ready for the lab session when it begins.
Maintain a respectful and focused attitude.
Do not entertain guests.
Prepare for each experiment thoroughly by reading the pre-lab assignments, procedures, and experimental techniques.
Always be aware of the reason behind each action in a procedure.
Thoroughly review the lab procedure before starting.
Discussions with your instructor or peers are encouraged for a deeper understanding.
Check chemical labels twice before use.
Proper disposal of chemical waste is essential.
Confirm with your instructor before mixing chemicals in the sinks.
Ensure safety equipment such as gas outlet valves, water supply, and sink areas are cleared for the lab session.

Record all data accurately and directly on the assigned lab report sheet.
Use ink to record observations and measurements.
If a mistake is made, cross out the incorrect entry with a single line and write the correction nearby.
If a value is less than 0.10, include the zero.
Treat recorded data with integrity.
Organize lab reports methodically and clearly.

I. Flammable: Flammable and combustible liquids, such as alcohols, esters, ethers and ketones need to be handled carefully and away from heat, flames or sparks.
II. Corrosive: Acids and bases, such as benzoic acid, nitric acid, phenol and sulfuric acid can damage skin and clothing. Handle with care, properly equipped.
III. Toxic: All chemicals should be considered toxic. Appropriate care must be taken in use and disposal to prevent exposure.
IV. Explosive: Acetylides, azides, organic nitrates and perchlorates are explosive. Follow procedures and regulations.
VI. Irritant: Strong acids and bases, volatile organic solvents must be manipulated carefully to avoid skin contact and/or inhalation.