terça-feira, 12 de maio de 2015

Phase Monitor II

 

Fri, 05/08/2015 - 5:56pm

Supercritical Fluid Technologies

The SFT Phase Monitor II is a powerful tool for determining the solubility of various compounds and mixtures in supercritical and high-pressure fluids. It provides direct, visual observation of materials under conditions precisely controlled by the researcher. Experiments may be performed in liquids, supercritical carbon dioxide or other liquefied gases. The effect of co-solvents on the solubility of compounds of interest may be investigated as well. The Phase Monitor II allows the user direct observation of the dissolution, precipitation and crystallization of compounds over a wide range of pressures and temperatures. Advanced studies may be done to determine melting point depressions and the degree of polymer swelling in SF CO2 or traditional solvents. Experiments can be performed at pressures up to 10,000 psi and from ambient temperature to 150 centigrade.

Supercritical Fluid Technologies, www.supercriticalfluids.com

 

Note : A supercritical fluid is any substance at a temperature and pressure above its critical point, where distinct liquid and gas phases do not exist. It can effuse through solids like a gas, and dissolve materials like a liquid. In addition, close to the critical point, small changes in pressure or temperature result in large changes in density, allowing many properties of a supercritical fluid to be "fine-tuned". Supercritical fluids are suitable as a substitute for organic solvents in a range of industrial and laboratory processes. Carbon dioxide and water are the most commonly used supercritical fluids, being used for decaffeination and power generation, respectively.

 

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