| Budget Amount *help |
¥25,480,000 (Direct Cost: ¥19,600,000、Indirect Cost: ¥5,880,000)
Fiscal Year 2010: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2009: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2008: ¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
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| Research Abstract |
The goal of this research is to develop an automated system for pH measurements of high-temperature and high-pressure aqueous solution using a microchannel. An electrochemical microcell for potentiometric pH measurements at high-temperature and high-pressure condition was developed. The microcell was equipped with a microchannel for exact control of temperature and residence time. Then, an automated measurement system was developed for continuous measurements at different temperature, pressure, flow rate, concentration, and solute conditions. Further, new dissociation constant data of carboxylic acids were reported. On the basis of the data, a simple prediction method for dissociation constant of carboxylic acids was proposed.
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