What kind of liquid is pure sulfuric acid, what is high and what is big is mainly pure.

Pure sulfuric acid is a colorless and odorless oily liquid. The mass fraction of H2SO4 in commonly used concentrated sulfuric acid is 98.3%, its density is1.84g cm-3, and its substance

The mass concentration is 18.4 mol L-1. Sulfuric acid is a strong acid with high boiling point, which is difficult to volatilize. It is soluble in water and can be mixed with water in any proportion. Concentrated sulfuric acid solution

A lot of heat will be released in the process of dissolution, so when diluting concentrated sulfuric acid, it should be "poured into water, slowly poured along the wall of the device and constantly stirred." If concentrated sulfuric acid is continuously introduced

Sulfur trioxide, which will produce "fuming" phenomenon, so that more than 98.3% of sulfuric acid is called "fuming sulfuric acid"