How to determine phenolphtlalein alkalinity (P alkalinity)
Method.
1) 10 ml water sample take.
2) Add 1-2 drop phenolphtlalein indicator .
3) Titrate it against 0.1N HCL Or H2S04 solution
End point... colourless
Formula.
Ml used multiple by 500= ppm (p alkalinity)
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