Gray Chemistry Verses Green Chemistry: Challenges and Opportunities

نویسندگان

  • Sanjay K. Sharma
  • Ashu Chaudhary
  • R. V. Singh
چکیده

Green Chemistry is placed in the frontier areas of research and has been focused for considerable recent research. Green Chemistry, the design of chemical products and processes that reduce or eliminate the use and generation of hazardous substances is an overarching approach that is applicable to all aspects of chemistry. From feedstocks to solvents, to synthesis and processing green chemistry actively seeks ways to produce materials in a way that is more begin to human health and the environment. The current emphasis on green chemistry reflects a shift away from the historic "command-and-control" approach to environmental problems that mandated waste treatment, control and clean up through regulation and towards preventing pollution at its source rather than accepting pollution at its source. Rather than accepting waste generation and disposal as unavoidable, green chemistry seeks new technologies that are cleaner and economically competitive. Utilizing green chemistry for pollution prevention demonstrates that power and beauty of chemistry: through careful design, society can enjoy the products on which we depend while benefiting the environment. All synthetic processes involve the use of different solvents. Unfortunately many of the solvents are used in industry and retail are volatile organic compounds which inevitably lead to environmental damage, through pollution, risks to human health and to resource depletion, we need to develop and apply more environmentally friendly approaches. So, all traditional and old synthetic routes are more or less “Grey” in their working and obviously give adverse effects to the mankind and all living beings. Green chemistry provides “Green” paths for different synthetic routes using non-hazardous solvents and environmentalfriendly chemicals. The fundamentally attractive concept of green chemistry is solvent free reactions. Solvent free reactions can be accelerated by microwave activation and this combined clean technology approach to "greening" chemical reactions. The two most widely studied "new" alternative solvents at present are ionic liquids and supercritical fluids. An attempt has been made to introducing a new emerging Green face of multidimensional chemistry. The major aim of this article is to provide / discuses the emerging trends in environment management and evolve sustainable management strategies to solve the burning environmental problems.

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تاریخ انتشار 2008