Isothermal Bulk Modulus of Selected Fluids to 700 F and 10,000 Psig

Abstract

An apparatus has been designed and fabricated which is suitable for collecting bulk-modulus data to 10,000 psig and to 750 F, and results are presented for seven fluids to 700 F. A program has been written for an IBM 1620 computer for use in reducing experimental data to both isothermal secant and tangent bulk-modulus values. Bulk-modulus curves are presented for a chlorinated phenyl methyl silicone (MLO 56-843), hexa-2-ethylbutoxydisiloxane (MLO-8200), phenyl methyl silicone (QF-258), a deep dewaxed mineral oil (MLO 60-294), an ester of TMP (MLO 60-50), di-phenyl-di-n-dodecyl silane (MLO 57-637), and bis(phenoxyphenoxy)benzene (MLO 59-692). The bis(phenoxyphenoxy)benzene exhibited the highest bulk-modulus values and the chlorinated phenyl methyl silicone exhibited the lowest. At the 67 percent confidence level, the standard error about the bulk-modulus curves ranged from ±0.1 percent to ±2.53 percent.