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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.
Reagents: Sodium arsenite solution, Standard sodium fluoride solution, Acid Zirconium Alizarin reagent
. Comparing the colour of water sample with the colour of the solutions in other tubes.
. Reduce the amount of fluoride in the sample from the standard chart for fluoride.
Result: The amount of fluoride in the sample is _______mg/L.
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.