Editing Colloid (section)

==Classification==
Colloids can be classified as follows:
{| class="wikitable" style="text-align:center"
|-
! colspan="2" rowspan="2" | Medium/phase
! colspan="3" | Dispersed phase
|-
! style=width:30%; | Gas 
! style=width:30%; | Liquid 
! style=width:30%; | Solid
|-
! rowspan="3" | Dispersion <br />medium
! Gas
| style="vertical-align: top;" {{n/a|'''No such colloids are known.'''<br />Helium and xenon are known to be [[immiscible]] under certain conditions.<ref name="de Swaan AronsDiepen2010">{{cite journal|last1=de Swaan Arons|first1=J.|last2=Diepen|first2=G. A. M.|title=Immiscibility of gases. The system He-Xe: (Short communication)|journal=Recueil des Travaux Chimiques des Pays-Bas|volume=82|issue=8|year=2010|pages=806|doi=10.1002/recl.19630820810}}</ref><ref name="de Swaan AronsDiepen1996">{{Cite journal|last1=de Swaan Arons|first1=J.|last2=Diepen|first2=G. A. M.|year=1966|title=Gas—Gas Equilibria|journal=J. Chem. Phys.|volume=44|issue=6|page=2322|doi=10.1063/1.1727043|bibcode=1966JChPh..44.2322D}}</ref>}}
|style="vertical-align: top;"|'''Liquid [[aerosol]]'''<br />Examples: [[fog]], [[cloud]]s, [[condensation]], [[mist]], [[steam]], [[hair spray]]s
|style="vertical-align: top;"|'''Solid aerosol'''<br />Examples: [[smoke]], [[ice cloud]], [[atmospheric particulate matter]]
|-
! Liquid
|style="vertical-align: top;"|'''[[Foam]]'''<br />Example: [[whipped cream]], [[shaving cream]]
|style="vertical-align: top;"|'''[[Emulsion]] or [[Liquid crystal]]'''<br />Examples: [[milk]], [[mayonnaise]], [[hand cream]], [[latex]], {{nobr|[[biological membranes]]}}, liquid [[biomolecular condensate]]
|style="vertical-align: top;"|'''[[Sol (colloid)|Sol]]'''<br />Examples: [[ink|pigmented ink]], [[sedimentation|sediment]], [[precipitates]], solid [[biomolecular condensate]]
|-
! Solid
|style="vertical-align: top;"|'''Solid foam'''<br />Examples: [[aerogel]], [[Ivory (soap)|floating soap]], [[Expanded polystyrene|styrofoam]], [[pumice]]
|style="vertical-align: top;"|'''[[Gel]]'''<br />Examples: [[agar]], [[gelatin]], [[Fruit preserves|jelly]], gel-like [[biomolecular condensate]]
|style="vertical-align: top;"|'''Solid sol'''<br />Example: [[cranberry glass]]
|}

Homogeneous mixtures with a dispersed phase in this size range may be called ''colloidal aerosols'', ''colloidal emulsions'', ''colloidal suspensions'', ''colloidal foams'', ''colloidal dispersions'', or ''hydrosols''.

<gallery mode="packed">
File:Aerogel hand.jpg|Aerogel
File:Jello Cubes.jpg|Jello cubes
File:Opaleszens Kolloid SiO2.jpg|Colloidal [[silica gel]] with light [[opalescence]]
File:Crème Chantilly.jpg|Whipped cream
File:Dollop of hair gel.jpg|A dollop of hair gel
File:Cream in round container.jpg|[[Cream_(pharmacy)|Creams]] are semi-solid emulsions of oil and water. Oil-in-water creams are used for cosmetic purpose while water-in-oil creams for medicinal purpose
File:Why is the sky blue.jpg|[[Tyndall effect]] in an [[opalite]]:<br>it scatters blue light making it appear blue from the side, but orange light shines through.<br>[[Opal]] is a gel in which water is dispersed in silica [[Colloidal crystal|crystals]].
File:Glass of Milk (33657535532).jpg|[[Milk]] - [[emulsion]] of liquid [[butterfat]] globules dispersed in water
File:Mist - Ensay region3.jpg|Mist
</gallery>