👉 The state fluid, also known as the supercritical fluid, is a phase of matter that exists when a substance is subjected to extremely high temperatures and pressures, causing it to transcend the boundaries between liquid and gas. At these conditions, the state fluid exhibits unique properties that are intermediate between those of a liquid and a gas, such as high density, low viscosity, and the ability to dissolve materials similar to gases. This makes state fluids particularly useful in various industrial applications, including extraction processes, chemical synthesis, and enhanced oil recovery.