Dispersion Medium


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Related to Dispersion Medium: dispersed phase

dispersion medium

[də′spər·zhən ‚mēd·ē·əm]
(chemistry)

Dispersion Medium

 

a continuous phase (body) in whose volume another (dispersed) phase is distributed in the form of small solid particles, droplets of liquid, or bubbles of gas. A dispersion medium may be solid, liquid, or gaseous; it forms disperse systems in combination with the dispersed phase.

References in periodicals archive ?
Thus, they cannot be used as dispersion medium of the clay when waterborne resins are used.
Acetone seems, indeed, to have a slight advantage over ethanol as the initial dispersion medium, and more clay can be added before reaggregation reappears in the composite.
Through the mass of the LD, the densities, and the linear sizes of its components, we determine the percentage of the pure substance in the dispersion phase, as well as the percentages of the bound and the free dispersion medium of LD.
After the phase separation of LDs, sharp macroscopic flat border is formed between the components of the dispersion phase, with separated dispersion medium in K.
Figure 3 displays integrated SAXS intensity distribution of the latex dispersion taken with the salt content in the dispersion medium ranging between 0 and 17 wt%.
4 NaCI [rho.sub.m] [rho.sub.1] [rho.sub.2] [R.sub.1] [R.sub.2] (wt%) (g (g (g (nm) (nm) c[m.sup.-3]) c[m.sup.-3]) c[m.sup.-3]) 0 0.994 1.08 1.22 63 65 0.25 1.005 1.08 1.22 63 65 0.75 1.013 1.08 1.22 63 65 1.2 1.035 1.08 1.22 63 65 4.8 1.08 1.08 1.22 63 65 9 1.11 1.08 1.22 63 65 17 1.15 1.08 1.22 63 65 The best fits of the data could be achieved by changing the mass density of dispersion medium in the latex.
Under these conditions, some of the solvent molecules are excluded to the bulk dispersion medium. This results in a decrease in the entropy of mixing of the chains with the solvent molecules providing stability.
The colloidal particles are in continuous random motion in the dispersion medium, a phenomenon demonstrated by Robert Brown known as Brownian motion.
Due to the scattering and absorption of light, color is affected not only by the nature of the dispersed phase and the dispersion medium, but also by the degree of particle dispersion, shape and structure.
As the DBSA amount increases the solubility of PPy also increases which is attributed to the fact that high concentration of the dopant in the dispersion medium hinders the cross-linking among PPy chains [Error!
Final particle weight fraction of each latex was approximately 0.20 in a dispersion medium of 80/20 wt% n-propanol/water.
The dispersion medium components were 2-methoxyethanol (Sigma Chemical Co., U.S.A.) and ethanol (99%, Tekel A.S., Turkey).