Sulphite test in boiler water.

 How to check Sulphite in boiler water 🌊

Method.

| Take 50ml water sample .

| Then add up phenophlene indicator attain pink colour.

| Then add acidic media HCL\ H2So4 till colourless results attain.

| Then add 1ml Starch solution as a indicator

| Titrate it against ki kIo3 solution (0.02N)

Results

End point.             Light pink colour attain

Formula

C.c used × 0.02

C.C used × 25 = ppm sulphite