Water hardness that can be reduced or removed by heating the water. Heating drives off carbon dioxide, shifting the carbonate buffer system equilibrium so that carbonate ions combine with dissolved calcium or magnesium ions, form solids, and precipitate. This lowers the calcium/magnesium ion water concentration, lowering the hardness. Also referred to as Carbonate Hardness. Also see Ion Exchange.
TEMPORARY HARDNESS
Meaning of TEMPORARY HARDNESS in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012