Important Chemical Characteristics of Drinking Water
Chemical Characteristics of Drinking Water Chemical Characteristics H2O is the chemical formula for water. Water's capacity to "stick" to itself and other surfaces is due to its unusual form, which has both hydrogen atoms on the same side of the oxygen atom. The hydrogen atoms provide a positive electrical charge, whereas the oxygen atom produces a negative electrical charge. Total Dissolved Solids (<500) Total solids can be found by evaporating a sample of water and weighing the dry residue left. Suspended solids can be found by filtering a water sample through Whatman filter paper No.44 The maximum number of solids that can be present in water is usually regulated at 500 parts per million (ppm). pH (6.5 to 8.5) It is measure by hydrogen ion concentration in water. It is measure by Potentiometer and Colorimetric method Alkalinity & Acidity Alkalinity is caused by bicarbonates of Ca & Mg and carbonates, hydroxides of Ca, Mg, Na, K. Alkalinity effect