Chemistry Reference
In-Depth Information
CHAPTER 8
A Chromatography-free Method
for the Isolation of Products
from Mechanochemical
Reactions
JAMES MACK
University of Cincinnati, Department of Chemistry, 301 Clifton Court,
Cincinnati OH, 45221-0172, USA
Email: james.mack@uc.edu
8.1 Introduction
From the beginning of time, chemistry has played a major role in the
advancement of our society.
1
In the early periods of man, materials such
as porcelain, copper and bronze were important chemical discoveries;
later materials such as gun powder, soap and rubber further advanced our
society. Although these and other chemical discoveries have had a positive
impact, as time has passed questions arose as to the adverse effects of
chemicals in the environment. In 1962, Rachel Carson's Silent Spring was
one of the first topics that directly challenged the chemical industry and the
effect that chemical products has on the environment.
2
She claimed that
dichlorodiphenyltrichloroethane (DDT) and other pesticides had a negative
effect on the ecosystem. After many studies, it was shown that indeed DDT
had an adverse effect on the ecosystem, which led to a ban of the use of DDT
as a pesticide in 1972. Other incidents such as the Love canal tragedy and
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