2. CERTIFICATE
This is certify that Rashmi Sharma, Roll No.
_________ studying in standard XII of Lions
Public School for the session 2010 – 2011 has
worked on the project of chemistry and completed
the same satisfactorily during the academic year.
MR. SANJAY MISHRA
Head of the Deptt. of Chemistry
LIONS PUBLIC SCHOOL, SINDRI
3. ACKNOWLEDGMENT
In this attempt of where and which of detailed and analytical
of Chemistry investigatory Project work is based on effect of
dyes has been performed. The investigator Project work is
result of judicious mix of valuable teaching and experience
of our great faculties. This attempt would have been adopted
by him is a great task in completing this project work.
And this attempt has been complied by the effort of Rashmi
Sinha from Std. XII, Roll No. _______________ of science
session of lions public school.
Completed By :
Guide By : Mr. Sanjay Mishra
MR. SANJAY MISHRA
Chemistry DEPARTMENT
4. APPARATUS
Four 250 ml Beaker
Glass Rod, or Wooden Stick
Filter paper or old newspaper
A piece of wooden cloth
5. CHEMICAL
ALIZARIN SOLUTION
0.10 M Potassium Aluminum Sulphate solutions
010 M Barium Chloride Solution
0.10 M Ferric Chloride solution.
6. THEORY
Alizarin has yellow colour. It is poor dye but dyes the
cloth well when mordent with metal salt solution. This is
because it forms a co-ordinate bond with the metal iron.
7. PROCEDURE
Take four 250 ml. Beakers, number the beaker 1 to 4, put
0.1m barium chloride ion beaker No. 3 and Alizarin
solution in beaker No. 4 and about 0.2g of NaCO3 in
Alizarin solution.
Heat the beaker No. 1,2 & 3 over a bath
Immerse in each beaker one piece of woolen cloth.
When fields soak enough solution, remove and rise
thoroughly in worm water. Squeeze out excess of the water
by pressing first against the side of beaker with wooden stick
or rough filter paper.
Now dip cloth pieces previous dipped into the alum solution
in alizarin solution and squeeze out excess of the solution
folds of old newspaper.
Wash thoroughly with water and let in dry.
Not in colours
Repeat the process with cloth pieces previously dipped in
ferric chloride solution. Note their colour drying.
8. OBSERVATION
Nature of the Fabric Dyed = Woolen Cloth
Dye use = Alizarin
Mordant = Colour Produced
Potash Alumn i.e. Aluminum Red
Ferric Chloride i.e. Iron Black – Violet
Barrium Chloride i.e. Barium Blue
9. CONCLUSION
Different mordant produce different colour with the same
dye. Alizarin give red colour with aluminum. Black –violet
with Barium mordant. Alizarin is an Anthraquinone type
dye.
