Hello,
"Reagent-grade ethyl alcohol" generally refers to ethyl alcohol that meets specific purity standards for use in laboratory or analytical procedures. Here's how your options fit:
Reagent Alcohol: Likely matches "reagent-grade" as it's typically ethanol with added denaturants, making it unsuitable for consumption but acceptable for most lab purposes. However, check for compatibility with your protocol since denaturants can affect your reaction.
Ethanol (96%): Not strictly "reagent-grade" but could work if high-purity ethanol isn't critical for your application. The 4% water content might influence results if precise concentrations matter.
Ethanol, Absolute (99–100%): This is pure ethanol, commonly meeting reagent-grade standards, and is ideal if the protocol calls for minimal impurities or water content.
Recommendation: If your protocol doesn't explicitly mention absolute ethanol, you could use Reagent Alcohol or Ethanol (96%) if the added water or denaturants won't interfere with your application. Otherwise, go with Ethanol, Absolute for the highest purity. When in doubt, check the protocol's tolerances or consult your supplier's documentation for "reagent-grade" specifications.
