1. Green Chemistry

2. Econoburette
• Semimicro volumetric Econoburette (SMVE) is an economized, risk
free and green chemistry instrument, which performs valuable
titration with microlitre of substances.
• IT is an inbuilt pipette performing functions of the pipette and conical
flask
• The micro level amount of titer and titrant consume less time in
performing a volumetric titration and prevents more use of materials
• Econoburette is found superior and advantageous for volumetric
analysis over conventional burette. If it is used at a mass level, it
would save environment from being polluted. Its fabrication, handling
and operation are easy and it is useful for industries and educational
institutions. It avoids pipetting of a liquid with mouth because
sometimes the liquid to be sucked goes inside the body via mouth.
Even if a user takes much precaution to avoid an entry of a liquid to
user’s mouth the dangerous fumes are certain to enter the body due
to direction of a force to suck a sample. Such fumes are poisonous for
growing children
• The econoburette also facilitates the titration of volatile liquids, thus it
is very useful for chemistry laboratories.

3. • It is a green titration device for school, college, university and R &
D centers.

4. By: Dr. Ashish Kumar
Surivsmeter
•Survismeter, a single apparatus,used for viscosity, ST, interfacial tension
thus discarding viscosmeter and stalagmomter for viscosity and surface
tension, interfacial tension study.
• individually, wetting coefficient, viscosity, molecular weight, solvent
binding capacity of proteins, architectural molecules, friccohesity can also
be measured
•It works on theory of R4M4 (Reduce, Reuse, Recycle, Redesign,
Multipurpose, Multidimensional, Multifaceting and Multitracking) of
materials and methods with highly précised and accurate experimental
results along 100% inhibition of polluting discharges in experimental
determinations.
•It saves electricity, water, manpower, chemicals, laboratory infrastructure,
glass materials, glassblowing gases LPG, oxygen
•The survismeter is most excellent model for study of Liquid-Liquid
Interfaces (LLI) of two immiscible solvents.
•It is safe in handling, sample loading with no hazards and no discharge of
polluting fumes/materials. It occupies minimum laboratory infrastructure.
•The Survismeter has reduced resources including support materials like
glass, blowing gases, manpower, laboratory space, electricity, water,
chemicals, by 97%.

5. By: Dr. Ashish Kumar
http://www.yourepeat.com/watch/?v=w0Fu7p74QEc
http://www.authorstream.com/Presentation/Maktedar-1385959-survismeter-slide/
Application Areas
Some of the major fields where our device is highly applied are enlisted
below:
•Pharmacy
•Chemistry
•Biochemical Engineering
•Biophysical Courses
•Cosmetics
•Inks
•Fuel
•Petroleum
PolymersDrug Design
Paper Pulp
Soaps and Detergents
Pesticides
Insecticides

6. By: Dr. Ashish Kumar
Alternative Green Procedures for Organic Qualitative
Analysis - Detection of N, S, Cl, Br, I
In the present practice, the use of metallic sodium for fusion with organic compound is
terribly hazardous and is a cause of great worry and concern in a student laboratory.
The idea of fusion with sodium metal is to convert the water insoluble organically
bound extra elements to water-soluble sodium salts which can be easily detected by
various tests.
Na + CN--------- CN
Na +S -------Na2S
Na +X -------NaX
(X = Cl/Br/I)

7. By: Dr. Ashish Kumar
A non hazardous and safe procedure:
Use of zinc and sodium carbonate instead of metallic sodium
Organic sample (about 50 mg) is thoroughly mixed with an intimate mixture of Zn dust (200 mg)
and Na2CO3 (300 mg) powder in a fusion tube, heated first gently and then strongly in the flame
till it becomes red hot and kept at red-hot condition for two minutes. The bottom part of the
fusion tube is plunged into 5 ml of distilled water taken in a mortar, ground well with the pestle
and filtered. With the filtrate tests for S, N and Cl / Br / I are carried out as usual as in the case of
Lassaigne’s Test.
1.The fusion tube must be heated VERY STRONGLY, KEEPING AT RED HOT CONDITION
THROUGHOUT FOR AT LEAST TWO MINUTES. If not properly heated, fusion is not properly done
(as in case of sodium also), and thus expected observation (colour change) may not be made. In
that case, it is advised to repeat the fusion.
2. The amount of water taken in the mortar must be within 5 ml.; otherwise, the solution will
be too dilute to respond to tests, described below.
3. While carrying out the test for nitrogen, ferrous sulphate crystals are to be added; not the
solution. This is to avoid excessive dilution.
4. Acidification must be carried out with dilute sulfuric acid, not with HCl.
5. No ferric chloride should be added.

8. By: Dr. Ashish Kumar
S.
No
Experiment Observation Inference
1 0.5 ml filtrate + FeSO4 crystal
heat + dil. H2SO4
Prussian blue color N present
2 a) 0.5 ml filtrate + Sodium
nitroprusside
Violet color S present
b) filtrate + dil acetic acid +
Lead acetate
Black ppt S present
3 filtrate + FeCl3 Blood red N+S both present
4 filtrate + 2 drops Conc HNO3
boil
cool + AgNO3
Curdy white ppt (Soluble in
NH4OH)
Pale yellow ppt (Partly soluble in
NH4OH)
Yellow ppt (Insoluble in NH4OH)
Chlorine present
Bromine present
Iodine present
Green context:
• This experiment totally eliminates the risk of explosion and fire hazard which are often met whil
carrying out the same experiments using metallic sodium.
• The aforesaid zinc-alkali mixture (prepared by intimately mixing 2 parts by weight of zinc dust
and 3 parts by weight of sodium carbonate can be stored in a stoppered bottle for more than a
month.

9. Life cycle assessment (Cradle to grave
approach)

10. By: Dr. Ashish Kumar
Life-cycle assessment (LCA, also known as life-cycle analysis, ecobalance, and cradle-to-
grave analysis) is a technique to assess environmental impacts associated with all the stages
of a product's life from-cradle-to-grave.
The concept of LCA is to evaluate the environmental effects associated with any given
activity from the initial gathering of raw material from the earth, processing, manufacture,
distribution, use, repair and maintenance, and disposal or recycling until the point at which
all residuals are returned to the earth

11. • For example, trees produce paper, which can
be recycled into low-energy production
cellulose (fiberised paper) insulation, then
used as an energy-saving device in the ceiling
of a home for 40 years, saving 2,000 times the
fossil-fuel energy used in its production. After
40 years the cellulose fibers are replaced and
the old fibers are disposed of, possibly
incinerated. All inputs and outputs are
considered for all the phases of the life cycle.