Fluoride Test Kit manufacturer and supplier in Mumbai, Gandhidham, Surat, Visakhapatnam, chennai, kolkata, Fujairah, Dubai, Sharjah. Test for fluoride in water is fully based on titration method.
Technical Bulletin
Test for fluoride in water:
Reagents: Sodium arsenite solution, Standard sodium fluoride solution, Acid Zirconium Alizarin reagent
Standard chart for Fluoride
|
Test tube number |
No. of Drops of Sodium Fluoride solution |
No. of drops of distilled water |
No. of drops of Sodium Arsenite solution |
No. of drops of Acid- Zirconium Alizarin reagent |
Amount |
|
1 |
0 |
20 |
1 |
1 |
0.0 |
|
2 |
1 |
19 |
1 |
1 |
0.5 |
|
3 |
2 |
18 |
1 |
1 |
1 |
|
4 |
3 |
17 |
1 |
1 |
1.5 |
|
5 |
4 |
16 |
1 |
1 |
2 |
|
6 |
5 |
15 |
1 |
1 |
2.5 |
|
7 |
6 |
14 |
1 |
1 |
3 |
. 0,1,2,3,4,5,6 drops of Standard sodium fluoride solution was taken in 7 test tubes using a calibrated pipette.
. Add 20,19,18,17,16,15 and 14 drops of distilled water in to the above tubes so that the volume in each tube is 20 mL. with the pipette.
. Rinse the pipette and 20 drops of sample water was taken in a different test tube with the same pipette.
. Add 1 drop of Sodium Arsenite to all the pipette.
. Add 1 drop of Acid Zirconium Alizarin reagent to each of the tubes.
. Stir the solutions thoroughly.
. Comparing the colour of water sample with the colour of the solutions
in other tubes.
. Deduce the amount of fluoride in the sample from the standard chart for fluoride.
Result: The amount of fluoride in the sample is _______mg/L.
Product Label
