This chapter presents the values of diffusion coefficient in water of several organic compounds in a tabulated form. For the tabulation, an equation is selected for the diffusion coefficient at infinite dilution in water as a function of temperature. The tabulation is arranged by carbon number such...
physicsdiffusiondiffusion lengthlifetimemeasured valuesneutron sourcespulsestemperaturethermal neutronswaterMeasurements of the diffusion coefficient and the mean life time of thermal neutrons were made in water at different temperatures, using a pulsed neutron source. (W.D.M.)...
Deconvolution of compartmental water diffusion coefficients in yeast-cell suspensions using combined T(1) and diffusion measurements. An NMR method is presented for measuring compartment-specific water diffusion coefficient (D) values. It uses relaxography, employing an extracellular cont... MD Silva,KG...
The diffusion rate of noble gases in water has been measured by the mass‐spectrometrical determination of the amount of noble gas diffused in a certain time through a water column of known size. For Xe the absolute value of the diffusion coefficient was measured; for the other noble gases ...
(redirected fromwater diffusion) Thesaurus Medical Financial Encyclopedia diffusion In the process of diffusion of a single solute, a concentration of molecules on one side of a membrane (top) will move through a membrane (center) until there is equilibrium on both sides (bottom). ...
thediffusion coefficient ofSF6 (DSF6),whichhasnotpreviously beenmeasured. Inthisstudy, DSF6hasbeen determinedinpurewaterandin359/oo NaCIoveratemperaturerangeof5-25øC.The measurements weremadeusingacontinuous-flow diffusion cellwhereSF6flows beneathanagargelmembranewhileheliumflowsabovethegel.The...
The translational diffusion coefficient D was determined from dynamic light scattering (DLS) measurements for 14 samples of oligo- and poly(methyl methacrylate)s (a-PMMA), each with the fraction of racemic diads f r =0.19, in the range o... Katsuhisa Dehara,Takenao Yoshizaki,H Yamakawa - 《...
Diffusion coefficients were measured for the ternary system α-cyclodextrin(I)- n -butylurea(2)-water at three average concentrations. The cross coefficient D 12 was found to be almost zero and D 21 large and negative. These results are in agreement with the presence of an inclusion complex ...
Intradiffusion coefficients for tritiated water ( 3 HHO) and perchlorate ion ( 36 ClO 4 - ) were measured in perchloric acid solutions. At 5°C the diffusion coefficient measured for the tritiated species increases to a maximum near 1.3 mol-dm 3 . The data at 25°C have been used to ...
The self‐diffusion coefficient of water has been measured by the steady‐gradient spin‐echo method at pressures up to 2380 bar and temperatures between 2 and −20°C in the stable liquid range using both strengthened glass and beryllium–copper pressure vessels. At low temperatures and high ...