What is a typical characteristic of a reagent grade chemical?

A reagent grade chemical is characterized by its high purity, which makes it suitable for analytical and laboratory applications. High purity means that these chemicals contain a minimal amount of impurities, allowing for more accurate and reliable results in experiments and analyses. This is essential, especially in wastewater analysis, where precise measurements can significantly impact the outcome of tests and the interpretation of data.

On the other hand, low cost does not define reagent grade chemicals, as they are often more expensive due to their rigorous purification processes. While some reagent grade chemicals may possess a short shelf life, this characteristic is not universal and can vary significantly among different substances. Lastly, non-toxicity is not a defining attribute of reagent grade chemicals, as some may be hazardous, but still meet the high purity standards required for laboratory use. Thus, high purity is the primary characteristic that sets reagent grade chemicals apart.