water hardness – Hard and Soft Water

Determination of hardness of water by EDTA method

December 18, 2013May 3, 2018 Tasrik 8 Comments

Determination of hardness of water by EDTA method is one of the three main methods for determination of hardness of water. EDTA means Ethylenediaminetetraacetic acid. This EDTA reagent can be forming edta-metal complexes by the reaction with metal ions except …

Determination of Water Hardness

December 10, 2013December 17, 2013 Tasrik 2 Comments

Theoretically water hardness means the concentrations of all the metallic cations except the cations of the alkali metals. All nonmetallic ions like Hydrogen ion are excluded from the definition. Normally in the largest part waters, all off the water hardness …