"Reagent-grade ethyl alcohol" typically refers to a high-purity ethanol that meets stringent laboratory standards, such as those set by the American Chemical Society (ACS). It is used for scientific and analytical purposes, ensuring minimal impurities.
To clarify your options:
Reagent Alcohol: This is often a denatured alcohol blend (e.g., ethanol mixed with isopropanol or methanol) and may not meet the purity required for "reagent-grade."
Ethanol (96%): This is 96% pure ethanol, with 4% water. While it is high-purity, it may not always meet the "reagent-grade" standard unless explicitly labeled as such.
Ethanol, Absolute: This is 99-100% pure ethanol (anhydrous). If labeled as "reagent-grade," it would meet the required standard.
For your protocol, ensure the ethanol is explicitly labeled as "reagent-grade" to avoid discrepancies.
