Ethanol vs. Ethanoic Acid: Key Differences, Uses, and Safety Guide
Ethanol is the two-carbon alcohol in beer and hand gel; ethanoic acid is the same skeleton but with a –COOH group, making it the sour bite in vinegar.
Because both names start with “ethan-” and both can sit in clear liquids, home-brewers and cleaning hacks forums swap the terms—until one turns your salsa into pickles and the other knocks you out.
Key Differences
Ethanol (C₂H₅OH) boils at 78 °C, fuels stoves, and depresses the CNS. Ethanoic acid (CH₃COOH) boils at 118 °C, pickles veg, and etches metal. One’s flammable; the other’s corrosive. Same carbons, different endings.
Which One Should You Choose?
Need a solvent or party punch? Grab 70 % ethanol. Need to kill weeds or set salad dressing? Dilute ethanoic acid to 5 %. Never swap: drinking acid or pickling with alcohol ends badly.
Examples and Daily Life
Ethanol: vodka, perfume, biofuel. Ethanoic acid: chip-shop vinegar, descaling kettle rinse, eco-herbicide. Label check before DIY.
Can I use vinegar instead of vodka for cleaning?
Yes, 5 % ethanoic acid cuts grease and limescale; ethanol is better for sticky residues and germs.
Are both safe to handle?
Ethanol is flammable; ethanoic acid irritates skin and eyes. Gloves, goggles, and ventilation for both.