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Rev Sci Instrum. 2008 Aug;79(8):085101. doi: 10.1063/1.2964117.

Pressure transmitting medium Daphne 7474 solidifying at 3.7 GPa at room temperature.

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Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Osaka 558-8585, Japan.


A pressure transmitting medium named Daphne 7474, which solidifies at P(s)=3.7 GPa at room temperature, is presented. The value of P(s) increases almost linearly with temperature up to 6.7 GPa at 100 degrees C. The high pressure realized by a medium at the liquid state allows a higher limit of pressurization, which assures an ideal hydrostatic pressure. We show a volume change against pressure, pressure reduction from room to liquid helium temperature in a clamped piston cylinder cell, pressure distribution and its standard deviation in a diamond anvil cell, and infrared properties, which might be useful for experimental applications.


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