Adjectivecolloid (comparative more colloid, superlative most colloid) Positive colloid Comparative more colloid Superlative most colloid
From Wiktionary under the GNU Free Documentation License. A colloid is a type of chemical mixture in which one substance is dispersed evenly throughout another. A colloidal system consists of two separate phases: a dispersed phase (or internal phase) and a continuous phase (or dispersion medium). A colloidal system may be solid, liquid, or gaseous. Many familiar substances are colloids, as shown in the chart below. As well as these naturally occurring colloids, modern chemical process industries utilise high shear mixing technology to create novel colloids. The dispersed-phase particles have a diameter of between approximately 5 and 200 nanometers. Such particles are normally invisible to an optical microscope, though their presence can be confirmed with the use of an ultramicroscope or an electron microscope. Homogeneous mixtures with a dispersed phase in this size range may be called colloidal aerosols, colloidal emulsions, colloidal foams, colloidal dispersions, or hydrosols. The dispersed-phase particles or droplets are affected largely by the surface chemistry present in the colloid. Some colloids are translucent because of the Tyndall effect, which is the scattering of light by particles in the colloid. Other colloids may be opaque or have a slight color. Colloidal systems (also called colloidal solutions or colloidal suspensions) are the subject of interface and colloid science. This field of study was introduced in 1861 by Scottish scientist Thomas Graham. From Wikipedia under the
GNU Free Documentation License  ualweb.library.ualberta.ca unknown Mon, 04 Jan 2010 23:12:33 GM New York : Wiley, c1979. QD 549 I28 1979 QD 549 I28 1979 (ON SHELF)  iulren.com Rob Anderson ue, 01 Dec 2009 16:29:41 GM Colloidal. silver is a dietary supplement that is being widely marketed around the world. This product simply refers to pure water containing minute particles of silver that are electrically charged. This is also considered an ...  xenobiotic36.blogspot.com Syed Masudur Rahman Dewan Sat, 28 Nov 2009 22:39:00 GM Lecture- '. Colloid. '. View more documents from Masud36. From Google Blog Search: "colloid"  cadmach.com 141px x 144px | 6.30kB [source page] small cadmach coatin > 11 Jul 2008 17 48 6 6K small cadmill jpg 11 Jul 2008 17 48 5 7K small colloid jpg 11 Jul 2008 17 48 6 3K small de duster jpg 11 Jul 2008 17 48 5 2K  kuroppe.tagen.tohoku.ac.jp 218px x 306px | 7.10kB [source page] degussa logo gif 07 Dec 2005 12 30 1k ct200401001 72dpi 11 > 04 Sep 2004 02 56 77k count txt 13 May 2008 17 02 1k colloid gif 04 Sep 2004 02 56 7k colloid s gif 04 Sep 2004 02 56 1k ceramic2004s jpg 04 Sep 2004 02 56 2k ceramic2004 gif 04 Sep  ziplink.net 14px x 90px | 1.20kB [source page] toc colloid pick gif 05 May 1998 17 37 1k toc colloid on gif 05 May 1998 17 37 1k toc colloid off gif 05 May 1998 17 37 1k toc specialty on gif 01 Apr 1998 18 54 1k From Yahoo Image Search: "colloid" What can the particles in both a solution and a colloid can do? Q. solution particles and colloid particles can both Asked by Katelyn Celmer - Fri Jan 18 14:16:54 2008 - - 1 Answers - 0 Comments A. not sure what you after... they both scatter light Answered by ferrous lad - Fri Jan 18 14:55:50 2008 Can anyone tell me the difference between colloid and emulsion?? Q. I really need information about these two! Its for our exam.. I just want to be familiarized with the terms and its functions/uses. Cause its useless if I just memorize without knowing what the term means or what it does.. ehehe, Asked by Athena - Tue Aug 5 08:46:54 2008 - - 1 Answers - 0 Comments A. A colloid is a type of mechanical mixture where one substance is dispersed evenly throughout another. Because of this dispersal, some colloids have the appearance of solutions. A colloidal system consists of two separate phases: a dispersed phase (or internal phase) and a continuous phase (or dispersion medium). A colloidal system may be solid, liquid, or gaseous. An emulsion (IPA: / m l n/[1]) is a mixture of two immiscible (unblendable) substances. One substance (the dispersed phase) is dispersed in the other (the continuous phase). Examples of emulsions include butter and margarine, milk and cream, espresso, mayonnaise, the photo-sensitive side of photographic film, magmas and cutting fluid for metal working. In butter and margarine,… [cont.] Answered by kurisutiin - Tue Aug 5 08:54:29 2008 what are the different types of colloid and wat are there properties?
Q. what are the different types of colloid and wat are there properties? Asked by master - Thu Nov 1 08:19:14 2007 - - 1 Answers - 0 Comments A. Every colloid has 2 parts. One part is the continuous material and the other part is the dispersed material. The 4 examples of colloids given in the book Chemistry for Dummies are marshmallows, whipped cream, fog, and smoke. Beating cream (a liquid) with a hand mixer puts air (a gas obviously) into the mix hence whipped cream is a "gas-in-a-liquid" colloid. The continuous material is the cream and the dispersed material is the air which is spread throughout the cream. Marshmallow is a "gas-in-a-solid" colloid. Smoke is a solid-in-a-gas type colloid. Fog is a liquid-in-a-gas colloid. The solute particle (i.e. the dispersed material) size in colloids is 100 nm to 1000 nm (at least it is according to ). This places them inbetween solutions… [cont.] Answered by some_pixels_on_a_screen - Thu Nov 1 10:19:58 2007 From Yahoo Answer Search: "colloid" |
