pH of WATER pH of water is one of the fundamental characteristic of water that must not be ignored, pH of water gives us a lot of information about water, in any laboratory analysis of water that do not involve pH is practically incomplete, before we go further we like to look at the definition of pH, what is pH? In chemistry, pH is defined as the scale acidity or alkalinity of a water based solution, pH measures how acidic or how basic a water based solution is, the pH is a scale of 1-14, 1-7 or below 7 is considered acidic while 7-14 or above 7 is considered basic while 7 is considered as neutral. Table top pH meter The formular for pH is pH =-log[H⁺] this mean pH is the negative base 10 logarithm Now that we have known what is pH, let us progress on this topic what is the pH of water? The pH of pure water is 7, neutral, this is ideal for any drinking water, with an acceptable range of 6.5 -8.5 according to WHO and EPA standard on drinking water. But, ...
Iron is one of the major secondary contaminant in both domestic and industrial water supply. Iron have caused water industries several billions of dollars . Iron is the second most abundant metal in the earth's crust behind Aluminum(8%), of which iron accounts for about 5%. Elemental iron is rarely found in nature, as the iron ions Fe2+ and Fe3+ readily combine with oxygen- and sulfur-containing compounds to form oxides, hydroxides, carbonates, and sulfides. As rain fall, rain water infiltrates the soil and underlying geologic formations and dissolves iron, causing it to seep into aquifers that serve as sources of groundwater for wells. In surface water, such as rivers and lakes, dissolved iron is hardly ever found, because it readily reacts with oxygen, forms insoluble compounds and sinks out into the bottom of the water body. Iron is seldom found at concentrations greater than 10 milligrams per liter (mg/L) or 10 parts per million. The iron that seep into the sources of g...