Happy Holidays

Happy Holidays from all of us at Applied Separations.

Supercritical Fluid Works!

Supercritical Fluid (SCF) technology works! With today's innovative, easy-to-use systems from Applied Separations, your idea will be tomorrow's green process! No petroleum solvents and no toxic residue.

Some of the industries and uses for supercritical fluids include:

• Natural products


• Medicinals


• Biomass extractions


• Fragrances/essential oils


• Pharmaceuticals/foods


• Natural products


• Enzymatic reactions


• Reaction cleanups


• Hydrogenations


• Material Science


• Nanoparticles


• Aerogels


• Coatings


• Metal Injection Molding (MIM)


• Impregnations


• Electronics


• IC Cleaning


• Micro Electro-Mechanical Machines (MEM) cleaning


• Resist developer


• Textiles


• Dyeing


• Impregnations


• Cleaning


• Critical cleaning machine parts


• ICs


• MEMs


• Subcritical/Supercritical Water

For more information, visit the Supercritical Fluid section of Applied Separations' website.

Use Supercritical Fluids to Remove Water from Fragile Items

Supercritical Fluids are perfect for almost all Critical Point Drying applications. Carbon Dioxide in its supercritical state has the permeability to reach into the smallest crevices of any artifact. Unlike liquids, Supercritical CO₂ has no surface tension to destroy the artifact you’re trying to restore. With ‘normal’ evaporation techniques as the water goes from liquid to gas, the surface tension created by this state change pulls against the structure it is attached to causing capillary stress, and in the case of delicate artifacts, often destroying the artifact.

For more information on safely drying fragile artifacts with supercritical fluid, visit the SCF section of the Applied Separations website.

Applied Separations and the "12 Principles of Green Chemistry": Safer Solvents and Auxiliaries

The U.S. Environmental Protection Agency (EPA) has published their “12 Principles of Green Chemistry” originally published by Paul Anastas and John Warner in Green Chemistry: Theory and Practice (Oxford University Press: New York, 1998) http://www.epa.gov/gcc/pubs/principles.html

Applied Separations’ supercritical fluid extraction systems fall in line with these 12 principles. This week we will be addressing "Safer Solvents and Auxiliaries".

Green Chemistry Principle
Safer Solvents and Auxiliaries

EPA	Applied Separations
The use of auxiliary substances (e.g., solvents, separation agents, etc.) should be made unnecessary wherever possible and innocuous when used.	Applied Separations SCF systems use supercritical CO2 to simulate solvents, eliminating or greatly reducing the need for solvents. Supercritical CO2 is “tunable” and is able to mimic solvents by adjusting the pressure. Change the pressure, and you change the density, which changes the solvating power.

For more information, view the What is Supercritical Fluid? presentation on the Applied Separations website.

http://appliedseparations.com/ASInteractive/Overviews/SCF/What_is_SFE/player.html

Applied Separations and the "12 Principles of Green Chemistry": Design Safer Chemicals and Products

The U.S. Environmental Protection Agency (EPA) has published their “12 Principles of Green Chemistry” originally published by Paul Anastas and John Warner in Green Chemistry: Theory and Practice (Oxford University Press: New York, 1998) http://www.epa.gov/gcc/pubs/principles.html

Applied Separations’ supercritical fluid extraction systems fall in line with these 12 principles. This week we will be addressing "Designing Safer Chemicals and Products".

Green Chemistry Principle
Design Safer Chemicals and Products

EPA	Applied Separations
Chemical products should be designed to effect their desired function while minimizing their toxicity.	Applied Separations SCF systems minimize toxicity by using supercritical CO2. The use of supercritical CO2 greatly reduces (if not eliminates) the use of toxic materials. Applied Separations supercritical fluid systems use existing carbon dioxide.

For more information, view the What is Supercritical Fluid? presentation on the Applied Separations website.

http://appliedseparations.com/ASInteractive/Overviews/SCF/What_is_SFE/player.html

Applied Separations and the "12 Principles of Green Chemistry" Week 1: Prevention

The U.S. Environmental Protection Agency (EPA) has published their “12 Principles of Green Chemistry” originally published by Paul Anastas and John Warner in Green Chemistry: Theory and Practice (Oxford University Press: New York, 1998) http://www.epa.gov/gcc/pubs/principles.html

Applied Separations’ supercritical fluid extraction systems fall in line with these 12 principles. In the coming weeks, we will be briefly addressing each of these points.

Green Chemistry Principle
Prevention

EPA	Applied Separations
It is better to prevent waste than to treat or clean up waste after it has been created.	Applied Separations SCF systems prevent waste by using supercritical CO2. The use of supercritical CO2 greatly reduces (if not eliminates) the use of hazardous chemicals. If fewer chemicals are used, there are less hazardous waste disposal concerns.

For more information, view the What is Supercritical Fluid? presentation on the Applied Separations website.

http://appliedseparations.com/ASInteractive/Overviews/SCF/What_is_SFE/player.html

More Than Just an Empty Vial - Supercritical Fluid Collection Methods

Applied Separations offers several ways of collecting a sample from a Supercritical Fluid system, depending upon your needs.

Direct collection into SPE cartridge.

Of course, neat collection (the empty vial) is always an option - directly collect a pure extract into a clean, empty collection vial. It isn't, however, the only option. Applied Separations also offers Solid Phase Extraction, Liquid Trap and Chilled Collection as options with their supercritical fluid systems.

For more information, see the SCF section of the Applied Separations website.

http://appliedseparations.com/ASInteractive/Overviews/SCF/Collection_Methods.asp