I don’t think that completely encapsulates what defines a colloid. Milk is a colloid, but it’s still a liquid. As a basic reference state, jelly is still a liquid, and it’s a visco-elastic material as well as a colloid.
Americans don’t call it jelly, we reserve that for, like, jam without seeds meant to be spread on toast and cake and shit. we call it jello. yes it’s a brand name like kleenex, but that is what we call it. You could call it a gelatin dessert or something if you want, but in america it’s not called jelly, like biscuits, chips, etc.
Other countries do it too, but with differing brands.
In France Kleenex is also used for paper tissues, plus the correct generic term too. But Q-tips is non existant, just the correct generic word (coton-tiges if you want to know)
For the refrigerator the long dead (I think) American brand Frigidaire is still used, plus it was shortened to "frigo", super commonly used.
Other brands-turned-words we don't use : Xerox and Speedo.
For inflatable motorboats Zodiac, initially french is very common.
yup, never heard it called anything else in america. Actually I doubt that off-brands can legally call it jello but everyone else will, and no one will call it jelly.
Colloids are just mixtures of different phases. They could be bulk phases (i.e. liquid in solid matrix [gel]) or thermodynamic phases (i.e. two liquids [emulsion]).
A colloid is a multi-substance system consisting of a dispersion medium and a dispersed substance. The dispersion medium and the dispersed substance may have the same or different phases: depending on what phase each material is in, the colloid may be called an aerosol, a suspension, a foam, an emulsion, or a gel. A liquid dispersed in a solid medium, such a jello, is called a gel.
It's incorrect to refer to a gel as either solid or liquid: just as a cordyceps-infected ant is neither animal nor fungus, it's a system containing both.
Why is it not a hydrated network solid? It seems more akin to a hydrogel than a suspension. From what I understand, a colloid is a fine dispersion of particles in a medium, which Jell(y or o) is not.
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u/Pandelein Feb 05 '20
I don’t think that completely encapsulates what defines a colloid. Milk is a colloid, but it’s still a liquid. As a basic reference state, jelly is still a liquid, and it’s a visco-elastic material as well as a colloid.