2CYL21 & Chemistry Laboratory for Civil Engineering-Estimation of chloride ions in the given sample using Argentometric Method

1. DEPARTMENT OF CHEMISTRY
22CYL23 – CHEMISTRY LABORATORY
FOR CIVIL ENGINEERING
Prepared By
Dr.K.Manjula Rani
Assiociate Professor
Department of Chemistry
Kongu Engineering College,
Perundurai, Erode-638060
B.E– CIVIL
Estimation of Chloride ion in the given Sample
Using Argentometric Method

3. AgNO3
Standard
NaCl
Standard
NaCl
Standard
NaCl +
K2CrO4
Colour
changes
from yellow
to reddish
brown
precipitate

5. AgNO3 Colour
changes
from yellow
to reddish
brown
precipitate
Made up
water
sample+
K2CrO4
Unknown water
sample make
up to 100ml
Made up
water
sample

8. VIVA - VOCE QUESTIONS
1. What is argentometric method?
2. Why AgNO3 is given in brown bottle?
3. Write the colour of AgCl & Ag2CrO4.
4. Name the indicator used in the experiment.
5. Write the chemical name of white precipitate and reddish brown precipitate.
6. Write the colour of K2CrO4.
7. Write end point (colour change)of your experiment.
8. Write the permissible limit of chloride in drinking water.
9. Name the chloride containing salts in water.

9. REFERENCES:
 1.Palanisamy P.N., Manikandan P., Geetha A.& Manjula Rani K,
“Chemistry lab Manual”, 2023.
12-Oct-23

10. 12-Oct-23
THANK
YOU
THANKYOU