Why is it critical to label all samples and reagents in a lab?

Labeling all samples and reagents in a lab is critical primarily to prevent mix-ups and ensure safety. In a laboratory environment, where multiple chemicals can be present, proper labeling helps to avoid confusion between similar-looking substances or those with similar names. This is essential to prevent accidental mixtures that could lead to hazardous reactions or exposure to harmful substances.

Moreover, clear labeling facilitates the proper handling of materials, as it allows researchers to identify the contents of containers quickly. This is particularly important during experiments where timing and selection of reagents can be crucial to the success of the procedure and to avoiding dangerous situations.

While accurate chemical reactions, compliance with regulatory standards, and cost management are also important aspects of laboratory practices, the priority of labeling lies chiefly in maintaining safety and protocol integrity.