What is the impurity that must be removed from the benzaldehyde reagent before it can be used in this experiment?

this is from are Benzil lab

To determine the impurity that needs to be removed from the benzaldehyde reagent in the Benzil lab experiment, you can refer to the lab procedure or instructions provided. Typically, impurities in benzaldehyde reagent can include water, alcohols, or other organic solvents.

Here's how you can further investigate the particular impurity:

1. Read the lab procedure: Look for any mention of reagent purification or impurity removal steps. The procedure might specify the impurity to remove or provide instructions on purification techniques.

2. Consult the Material Safety Data Sheet (MSDS): The MSDS for benzaldehyde should list any known impurities and their potential hazards. If the impurity is mentioned, it might provide clues on the required purification method.

3. Check lab manuals or textbooks: If the specific experiment is part of a larger lab manual or textbook, you can search for information on benzaldehyde handling, purification, or common impurities.

If the information is not readily available or unclear, it is recommended to consult with your lab instructor or a knowledgeable individual in your laboratory to ensure the correct impurity removal technique is followed for the experiment.