...phrase below? Dow Chemicals won the Greener Reaction Conditions awards a presentation to entities that demonstrate initiative in the application of Green Chemistry. They produced a 100% carbon dioxide blowing agent for the production of polystyrene foam. Blowing agents release gas bubbles that are trapped during the gelling . CFC and other ozone depleting chemicals were traditional in the process of producing foam sheets. These present a serious environmental hazard. Flammable, explosive sometimes toxic hydrocarbons have also been used as CFC replacements, but their use is directly contradictory of Green Chemistry principles. Since Dow Chemicals were able to use supercritical carbon dioxide, without the need for hazardous substances they were able to provide a ‘Greener’ alternative to past processes. Polystyrene can now be more easily recycled whilst the allowing the CO2 used in the process to be reused in other industries. In this way, the net carbon released from the process is zero.
Can you identify the Green Chemistry Principles that have been applied from the...
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