Determination of the Hardness of water from various parts of Uttar Pradesh using Complexometric titration

Water hardness is the traditional measure of the capacity of water to react with soap, hard water requiring considerably more soap to produce a lather. In this experiment, the hardness of water sample (collected from different locations) has been determined.The calcium in the water has been measured by performing a titration with EDTA, Eriochrome black T has been used as an indicator to determine calcium content in a solution. Risky degrees of hardness is dangerous to health. There is a wrong concept that hard water is injurious to healthiness, it's not hard water, it's very hard water (>180ppm). The minerals that are complemented to body through water will be useful to health in numerous methods.