Traditional Le Châtelier’s Principle experiments The first green replacement lab that I implemented in my classroom was Beyond Benign's Equilibrium/Le Chatelier’s Principle lab. These greener replacement labs teach the same skills and address the same standards as traditional experiments, but utilize methods and chemicals that don’t expose our students to unnecessary risk, and are safer for the environment. Green chemistry’s approach to reducing risk - through the elimination of hazards and toxic chemicals - is more effective than trying to lower exposure through the use of PPE.Ĭlassroom and laboratory safety can be improved by reducing the use of hazardous materials by replacing traditional chemistry labs with greener alternatives. Risk, or the probability of a harmful event, is a function of both exposure and hazard, and green chemistry plays a role in improving laboratory safety by addressing the hazard component of the function. However, accidents and unintended outcomes can still happen in the laboratory, especially with inexperienced high school chemistry students. Protocols, procedures, and rules are implemented to make sure the laboratory is a safe place to learn and to reduce the incidence and severity of accidents.
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Traditionally, this involves reducing the exposure to hazardous substances by showing students how to correctly use safety equipment and ensuring the use of proper personal protective equipment (PPE). Experiments are an essential component of the chemistry curriculum, and as a chemistry teacher it is my job to make the laboratory a safe learning environment.
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