Properties of high concentration sulfuric acid products: Due to the presence of a large number of non ionized sulfuric acid molecules in concentrated sulfuric acid (acid molecules in strong acid solutions may not all ionize into ions, and the strength of the acid is relative), concentrated sulfuric acid has special properties such as water absorption, dehydration (commonly known as carbonization, i.e. corrosiveness), and strong oxidation; In dilute sulfuric acid, the sulfuric acid molecules have been completely ionized, so they do not have the special chemical properties of concentrated sulfuric acid. Fuming sulfuric acid is a colorless or brown oily thick fuming liquid (brown because it contains a small amount of iron ions), with a strong pungent odor, strong water absorption, and can be mixed with water in any ratio, releasing a large amount of dilution heat. So when diluting concentrated sulfuric acid, it should be slowly injected into water along the container wall and continuously stirred with a glass rod

High concentration sulfuric acid