EXPERIMENTAL SCALING POTENTIAL OF HEATED WATER

The previously proposed mechanism of bicarbonate ions decomposition by the H-mechanism (with formation H+ and CO32-) or OH-mechanism OH- CO2) is confirmed experimentally without with heating water up to 190oC. change depends on hardness, alkalinity pH. observed at higher pH values (pH decreases) lower increases) in particular solutions.
 developed technique based measurement changing (ΔрНt) solution (at a fixed temperature 15 25oC) after it given (ranging from 40 190oC) maintaining this for least 30 minutes. A decrease (ΔрНt>0) indicates carbonate need additional treatment reduce greater ΔрНt, concentration formed water. If ΔрНt zero then can be used as quality index. This 86.4oC tap Kyiv 7.4). Measurement ΔрН meeting standards German supply systems 9.06, Hardness 45 μmol/dm3 - 5 times less than Ukraine) shows that such not scale-safe (ΔрН150=0.15).
 will able replace Langelier index (up 90oC) under condition systematic processing experimental data obtained different compositions its basis. method addition expensive dynamic tube blocking.