But scientists found a way to do it using supercritical fluids.

"We want to examine the supercritical fluid level, the surface of it at least."

Hydrogen becomes a supercritical fluid at around 12 bars pressure.

In general terms, supercritical fluids have properties between those of a gas and a liquid.

Only recently, however, have scientists and engineers recognized important uses to which supercritical fluids may be put.

Supercritical fluids act as a new media for the generation of cocrystals.

The unique properties of supercritical fluids can make them ideal solvents.

Supercritical fluids are likely to figure soon in the production of chemicals, pharmaceuticals and other foods.

Pharmaceutical cocrystals can be formed also by use of supercritical fluids.

This process is technically known as supercritical fluid extraction.

Modern methods use supercritical fluids in the micronization process.

Supercritical fluids have physical properties intermediate to those of gases and liquids.

This gel is then subjected to supercritical fluid extraction.

But like a liquid, a supercritical fluid can dissolve solids, including even such substances as salt.

A more practical solvent for many applications is supercritical fluid carbon dioxide.

Therefore, nitrogen (or compressed air) in a gas cylinder above this pressure is actually a supercritical fluid.

Recently, most supercritical fluid technology has been confined to the laboratory since it is expensive and usable only on a small scale.

Recent supercritical fluids have shown the capability to reduce particles up to a range of 5-2000 nm.

What properties make a supercritical fluid unusual?

Now supercritical fluid extraction is used almost universally.

The core themes of his work are supercritical fluids, infrared spectroscopy and lasers.

In Table 1, the critical properties are shown for some components, which are commonly used as supercritical fluids.

Ashok Malhotra has had special interests in supercritical fluids.

Very-low-temperature fluids: liquid nitrogen, hydrogen in the form of a supercritical fluid.

It depicts the phase (solid, liquid, gas, supercritical fluid) that will occur under a given temperature and pressure.