نتایج جستجو برای: alkalinity
تعداد نتایج: 3210 فیلتر نتایج به سال:
Azoheteroarene photoswitches offer functional advantages over their more conventional azobenzene counterparts by virtue of their heteroaromatic ring(s). Here we report that azobis(2-imidazole) functions as a photoswitchable base due to the additional proton stabilisation that is possible in the protonated Z isomer, facilitated by the basic imidazole nitrogens. This thermodynamic difference in s...
Sediment cores were used to estimate in-lake alkalinity generation resulting from sulfate reduction relative to inferred changes in lakewater pH and trophic status over the last century in three Connecticut lakes. Despite being situated in geological settings with crystalline bedrock and thin, poorly buffered soils, and being impacted with high rates of acidic precipitation, none of the study l...
Introduction: The Electrochemical process has high performance efficiency in nitrate removal. And the process may change the values of the residual chlorine dosages, hardness and alkalinity alongside nitrate removal. In this study, the changes of these parameters during the electrochemical denitrification process were studied. Methods: This experimental study was performed on synthetic w...
background and objectives: recognizing the impurities of sugar beet and also comparing different methods of juice purification have shown that the chemical purification based on lime and carbon dioxide is really efficient and economic in the sugar industry. factories have to control and improve purification stages to achieve clear juice with high chemical purity, low color, minimum hardness, su...
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