Question

How do u determine iron in water

Answer 1

Sulfosalicylic acid is used for determination of total iron in water. Bright yellow color in alkaline medium tells about presence of iron.

Potassium permanganate gives yellow-brownish color in the presence of iron..

Answer 2

There are several methods to determine the presence of iron in water. One common method is using a colorimetric test kit, which involves adding a reagent to the water sample that reacts with iron to produce a color change. The intensity of the color change can then be compared to a color chart to determine the concentration of iron in the water.

Another method is using a spectrophotometer, which measures the absorption of light by the iron in the water sample. This method provides a more precise measurement of iron concentration.

Additionally, iron can also be determined using complexometric titration, where a titrant solution is added to the water sample until all the iron is complexed with the titrant, and the concentration of the titrant can then be used to calculate the concentration of iron in the water.

It is important to note that the method used for determining iron in water will depend on the specific requirements of the analysis, such as the level of accuracy needed and the equipment available.