Signals Notebook: What is the difference in the "Description" and "Comments" system fields within the Chemical Samples template

What is the difference in the "Description" and "Comments" system fields within the Chemical Samples template in Signals Notebook?

They are both free text fields that you can use as you wish. For example, you have made some white crystals but you know that they slowly degrade if above a certain temperature or humidity, or that they are shock sensitive. You might put “white crystalline solid” in the Description, but the other information in the Comments.