These approaches encompass new synthesis and processes as well as new tools for instructing aspiring chemists how to do the chemistry in a more environmentally benign manner. The pros to industry as well as the environment are all a part of the positive impact that Green Chemistry is having in the chemistry community and in the society in general. It is important that chemists develop novel Green Chemistry options even on an incremental basis. While all the elements of the lifecycle of a new chemical or process may not be environmentally benign, it is nonetheless pivotal to improve those stages where improvements can be made. The next phase of assessment can then focus on the elements of the lifecycle that are still in need of the improvement. Even though a new Green Chemistry methodology does not solve at once every problem allied with the lifecycle of a particular chemical or process, the advances that it does make are nonetheless very key. Green Chemistry that mainly possesses the spirit of sustainable development was booming in the 1990s

1. Green Chemistry- An Overview
BY DR.SREEREMYA

2. • These approaches encompass new synthesis and processes as well as new
tools for instructing aspiring chemists how to do the chemistry in a more
environmentally benign manner. The pros to industry as well as the
environment are all a part of the positive impact that Green Chemistry is
having in the chemistry community and in the society in general. It is
important that chemists develop novel Green Chemistry options even on
an incremental basis. While all the elements of the lifecycle of a new
chemical or process may not be environmentally benign, it is nonetheless
pivotal to improve those stages where improvements can be made. The
next phase of assessment can then focus on the elements of the lifecycle
that are still in need of the improvement. Even though a new Green
Chemistry methodology does not solve at once every problem allied with
the lifecycle of a particular chemical or process, the advances that it does
make are nonetheless very key. Green Chemistry that mainly possesses
the spirit of sustainable development was booming in the 1990s,1

3. • The study of the organic reactions from the point of view of its greenness mainly
have in mind first of all that the general synthetic method must be based on
complete and efficient conversions of well described selectivity and that greenness
is more a term for comparison than an absolute kind of qualification (Ranu et
al.,1991). In order to evaluate and assess the greenness of a particular process
attention must be paid in the first instance to issues connected to safety, health
and protection of the environment, due to reactants (substrates and the reagents),
auxiliaries (mainly solvents) and waste. This enumeration is obviously incomplete,
but can be mainly useful at present. The question about how green a reaction is
most frequently refers to the particular conversion, to the comparison between
two or mainly more alternative processes for the same synthetic target, or
between the synthetic pathways for the manufacture of the alternative
compounds. The study of the greenness of the organic reaction is completed by
the short overview of recent contributions intended to achieve efficient, safe and
also clean conversions that are susceptible to becoming the general synthetic
procedures (Dere et al., 2003).

4. • Common examples of the inorganic chemicals are
water, salt (sodium chloride), air pollutant sulfur
dioxide, and lime. Carbon occupies the special place in
chemistry because it is so versatile in the kinds of
chemical species (compounds) that it mainly forms.
Most of the more than 20 million known chemicals are
substances based on the carbon known as organic
chemicals and addressed by the subject of the organic
chemistry.“The Wonderful World of Carbon: Organic
Chemistry and the Biochemicals.” The underlying
theory and physical phenomena that explain chemical
processes are explained by the physical chemistry.

5. • Living organisms carry out a broad variety of
chemical processes that are important in green
chemistry and the environmental chemistry, even
environmental biotechnology is an extension of
the field (Sreeremya, 2018).It is always important
to know the identities and quantities of the
various chemical species present in a system,
including various environmental systems. Often,
significant quantities of the chemical species are
very low, so sophisticated means must be
available to detect and to quantify such species.

6. • As the chemical industry developed and they grew during the early and
mid 1900s, most practitioners of the chemistry remained unconcerned
with and largely ignorant of the biopotential for harm — particularly
damage to the outside environment — of their products and processes.
Environmental chemistry was much essentially unknown and certainly not
practiced by most of the chemists. Incidents of pollution and
environmental damage, which were many and is quiet severe, were
commonly accepted as a cost of doing business or blamed upon the
industrial or the commercial sectors. The unfortunate attitude that
prevailed is mainly summarized in a quote from the standard book on
industrial chemistry from 1954 (American Chemical Industry—A History,
W. Haynes Van Nostrand Publishers, 1954): “By the sensible definition any
by-product of a chemical operation for which there is no profitable uses is
a waste. The most convenient, and least expensive way of disposing of
said waste — up the chimney or especially down the river — is best (. Toda
et al., 1998).”

7. • Despite their ease and potential to cause harm, nobody is more qualified
to accept responsibility for the environmental damage from chemical
products or processes than are chemists who have the knowledge to
mainly understand how such harmful effects came about. As the
detrimental effects of the chemical manufacture and use became more
obvious and severe, the chemists were forced, often reluctantly, to deal
with them. At present, enlightened chemists and the chemical engineers
do not view the practice of environmentally beneficial chemistry and
manufacturing as the burden, but rather as an opportunity that challenges
human imagination and the ingenuity. THE ENVIRONMENT AND THE FIVE
ENVIRONMENTAL SPHERES
• Compared to the generally well describe processes that chemists study in
the laboratory, those that occur in the environment are rather ramified
and must be viewed in terms of simplified models. A large part of this
ramification is due to the fact that environmental chemistry must take into
account five interacting and the overlapping compartments or spheres of
the environment,

8. •
• Journal of Biochemistry and Molecular
Science, Green Chemistry- An Overview,
• Dr.S.Sreeremya ,2020.Vol 2(1):1-7.