On the viscosity of glycolic acid
The world has asked: "Should glycolic acid be viscous?" In this regard, there are various opinions, which need to be analyzed in detail.

Glycolic acid has unique properties. From the perspective of chemical nature, glycolic acid contains carboxyl groups and hydroxyl groups, which are quite active. The carboxyl group is hydrophilic, and the hydroxyl group can also form hydrogen bonds with other substances. However, the influence of this digroup on viscosity is complex and changeable.

Looking at its normal state, if glycolic acid is in a pure state, the intermolecular interaction between carboxyl groups and hydroxyl groups may form a tight structure, resulting in an increase in the attractive force between molecules, which seems to be viscous. However, the actual situation is not the same. If the purity of glycolic acid is extremely high, the molecules are arranged in an orderly manner, the fluidity is good, and the viscosity is not obvious. Although there is an attractive force between the molecules, it does not reach the level of hindering the flow and showing viscosity.

Furthermore, the environment in which the glycolic acid is located is also critical. In solution, the properties of the solvent affect its viscosity. If the solvent interacts strongly with glycolic acid, it can disperse the attractive force between the glycolic acid molecules, and the viscosity may be reduced. If water is used as a solvent, the glycolic acid forms a hydrogen bond with water molecules, and the original force field between the molecules changes, and the viscosity may be different from the pure state.

In addition, temperature also has a great When the temperature increases, the thermal movement of molecules intensifies, the attractive force between molecules weakens, and the viscosity decreases; when the temperature decreases, the molecular movement slows down, or the molecules are arranged tightly and the viscosity increases.

In summary, the viscosity of glycolic acid is not absolute. It is restricted by many factors such as its own purity and its environment (solvent, temperature, etc.). It cannot be said unilaterally that it must be sticky or non-sticky. When all factors are considered comprehensively, an accurate understanding can be obtained.