lyophilicadj.

Brit.

/ˌlʌɪə(ʊ)ˈfɪlɪk/, U.S.

/ˌlaɪəˈfɪlɪk/

Etymology: < lyophil- (in lyophile adj.) + -ic suffix.

Physical Chemistry.

Of a dispersed colloidal phase: having an affinity for the dispersion medium; not readily precipitated out by small quantities of electrolyte. Also applied to sols containing such a phase, which generally have a lower surface tension and a higher viscosity than the dispersion medium and which give gels on evaporation or cooling.

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lyophilic1911

lyophile1915

1911 H. Freundlich in Chem. News 22 Sept. 140/1 Colloidal solutions stand between these two extremes. One class, distinguished from coarse suspensions only by the ultramicroscopic dimensions of their particles, are termed ‘Suspension-colloids’ or ‘Lyophobic Sols’. These include colloidal metals, sulphides, and many hydroxides. ‘Emulsion-colloids’, or ‘Lyophilic sols’, which include albumin, gelatin, starch, &c., approach more nearly to the true solutions.

1938 H. L. Hind Brewing I. vi. 111 The complex carbohydrates and proteins belong to the class of lyophilic colloids, which is much the more important class in brewing.

1940 S. Glasstone Text-bk. Physical Chem. xiv. 1210 Substances which most readily form lyophilic sols are those of high molecular weight; each particle, therefore, consists of a small number of molecules and in some instances possibly of only one large molecule.

1959 K. J. Musels Introd. Colloid Chem. viii. 181 If we consider a paraffinic solvent,..the alcohol group is now lyophobic and the hydrocarbons are lyophilic.

1969 G. D. Parfitt Dispersion of Powders in Liquids iii. 81 Solutions of macromolecules and association colloids are of the lyophilic type and form spontaneously when the components are brought into contact.

This entry has not yet been fully updated (first published 1976; most recently modified version published online March 2022).

单词	lyophilic
释义	lyophilicadj. Brit. /ˌlʌɪə(ʊ)ˈfɪlɪk/, U.S. /ˌlaɪəˈfɪlɪk/ Etymology: < lyophil- (in lyophile adj.) + -ic suffix. Physical Chemistry. Of a dispersed colloidal phase: having an affinity for the dispersion medium; not readily precipitated out by small quantities of electrolyte. Also applied to sols containing such a phase, which generally have a lower surface tension and a higher viscosity than the dispersion medium and which give gels on evaporation or cooling. ΘΚΠ the world > matter > chemistry > physical chemistry > colloid > [adjective] > lyophilic lyophilic1911 lyophile1915 1911 H. Freundlich in Chem. News 22 Sept. 140/1 Colloidal solutions stand between these two extremes. One class, distinguished from coarse suspensions only by the ultramicroscopic dimensions of their particles, are termed ‘Suspension-colloids’ or ‘Lyophobic Sols’. These include colloidal metals, sulphides, and many hydroxides. ‘Emulsion-colloids’, or ‘Lyophilic sols’, which include albumin, gelatin, starch, &c., approach more nearly to the true solutions. 1938 H. L. Hind Brewing I. vi. 111 The complex carbohydrates and proteins belong to the class of lyophilic colloids, which is much the more important class in brewing. 1940 S. Glasstone Text-bk. Physical Chem. xiv. 1210 Substances which most readily form lyophilic sols are those of high molecular weight; each particle, therefore, consists of a small number of molecules and in some instances possibly of only one large molecule. 1959 K. J. Musels Introd. Colloid Chem. viii. 181 If we consider a paraffinic solvent,..the alcohol group is now lyophobic and the hydrocarbons are lyophilic. 1969 G. D. Parfitt Dispersion of Powders in Liquids iii. 81 Solutions of macromolecules and association colloids are of the lyophilic type and form spontaneously when the components are brought into contact. This entry has not yet been fully updated (first published 1976; most recently modified version published online March 2022). < adj.1911
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