pure+silica
121Column chromatography — A chemist in the 1950s using column chromatography. The Erlenmeyer receptacles are on the floor. Column chromatography in chemistry is a method used to purify individual chemical compounds from mixtures of compounds. It is often used for… …
122Space Shuttle thermal protection system — The Space Shuttle thermal protection system (TPS) is the barrier that protects the Space Shuttle Orbiter during the searing 1650 °C (3000 °F) heat of atmospheric reentry. A secondary goal is to protect from the heat and cold of space while on… …
123Colloid — Milk is an emulsified colloid of liquid butterfat globules dispersed within a water based solution. A colloid is a substance microscopically dispersed evenly throughout another substance.[1] A colloidal system consists of two separate phases: a… …
124Carbon group — The carbon group is group 14 (IUPAC style) in the periodic table. Once also known as the tetrels (from Latin tetra , four), stemming from the earlier naming convention of this group as Group IVA. The group consists of carbon (C), silicon (Si),… …
125Fouling — This article is about fouling in engineering. For uses of the term foul outside technology, see Foul (disambiguation). Not to be confused with fowling. Heat exchanger in a steam power plant, fouled by macro fouling …
126Han Purple and Han Blue — Infobox Color|title=Han Purple|textcolor=white hex=5218FA r= 82|g= 24|b=250 c= |m= |y= |k= h= 260|s= 97|v= 47 source= [http://images.google.com/imgres?imgurl=http://www.spacedaily.com/images/microscopic han purple sm.jpg… …
127Forests of the Iberian Peninsula — The woodlands of the Iberian Peninsula are distinct ecosystems on the Iberian Peninsula, spanning mainly Spain and Portugal. Although the various regions are each characterized by distinct vegetation, there are some similarities across the… …
128copper processing — Introduction use of smelting or leaching, usually followed by electrolytic refining or recovery, to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of copper and of its… …
