WHY IS A GEL CALLED GEL?

WHY IS A GEL CALLED GEL?

19th-century Scottish chemist Thomas Graham coined the word  “gel” by shortening the word “gelatine.”

A gel is a sol in which the solid particles are meshed such that a rigid or semi-rigid mixture results. Cross-linking within the gel’s polymer or colloidal network causes a gel to behave as a solid in its steady-state and makes it feel tacky.