Final answer:
Chemical labels provide vital information including expiration date, safety data, and allergen information. It is crucial to read them carefully before use and refer to MSDS for additional safety guidance. Proper laboratory practices and understanding the conditions that affect chemical efficacy are essential for safety.
Step-by-step explanation:
Before using a chemical agent, it is important to carefully read the label because it provides critical information that ensures safe handling and use of the chemical. The label contains various details such as the expiration date, which informs you until when it is safe to use the chemical, and the safety data, which includes instructions on handling irritant chemicals, like hydrogen peroxide, and details on flammability and environmental hazards. For instance, CFCs are known to be environmentally harmful, and this would be indicated on the label. Flammable chemicals require specific precautions, such as avoiding exposure to heat or flame unless explicitly instructed. Labels may list allergens, too, and provide the manufacturer's contact information for further guidance.
Moreover, Material Safety Data Sheets (MSDS) are invaluable resources that offer comprehensive safety data on chemicals. They contain information on the proper disposal methods, as many chemicals cannot be discarded down the sink. When conducting experiments, especially with chemicals that hold antimicrobial properties, one should note the active ingredient listed on the commercial product's label.