Paraffin
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In chemistry, paraffin is a term that can be used synonymously with "alkane", indicating hydrocarbons with the general formula CnH2n+2. Paraffin wax refers to a mixture of alkanes that falls within the 20 ≤ n ≤ 40 range; they are found in the solid state at room temperature and begin to enter the liquid phase past approximately 37°C. The simplest paraffin molecule is that of methane, CH4, a gas at room temperature. Heavier members of the series, such as octane, C8H18, and mineral oil appear as liquids at room temperature. The solid forms of paraffin, called paraffin wax, are from the heaviest molecules from C20H42 to C40H82. Paraffin wax was identified by Carl Reichenbach in 1830. Paraffin, or paraffin hydrocarbon, is also the technical name for an alkane in general, but in most cases it refers specifically to a linear, or normal alkane — whereas branched, or isoalkanes are also called isoparaffins. It is distinct from the fuel known in the United Kingdom, Ireland and South Africa as paraffin oil or just paraffin, which is called kerosene in most of the U.S., Canada, Australia and New Zealand. The name is derived from Latin parum ("barely") + affinis, meaning "lacking affinity" or "lacking reactivity" indicating paraffin's unreactive nature ) From Wikipedia under the
GNU Free Documentation License Alternative formsNoun ParaffinWikipedia paraffin (plural paraffins)
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Q. What would happen to the specimen if the alcohols weren't cleared with some sort of agent before being embedded with paraffin wax? I know alcohols aren't mixable with paraffin. Would the alcohol be retained in the sample? Would the paraffin not set? Would the sample be destroyed? Not a scientist- just taking a class. Thanks for your help. Asked by tddrpe2005 - Thu Nov 15 12:27:51 2007 - Chemistry - 1 Answers - 1 Comments A. The idea of the wax is that penetrates the sample so that when it is cleaved with a microtome it forms a proper slice. If the alcohol is not displaced the wax cannot penetrate the sample and slicing will be poor Answered by C B - Thu Nov 15 12:38:37 2007 From Yahoo Answer Search: "paraffin" |
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 @ Weather Connection Store: Weather Connection Price: $29.99 USD • Compare Prices ► Condition: new Ho Medics PAR-300 Para Spa Plus Paraffin Bath hydrates and soothes skin for a more beautiful appearance. Includes 3 lbs of hypoallergenic wax and 30 liners- no scents or dyes added, ready light lets you know when wax is ready for use. Features:Hydrat es and Soothes Skin For A More Beautiful Appearance Lid Locks For Safety Adjustable Temperature Control Ready Light Lets You Know When Wax Is Ready For Use Includes 3 lbs of Hypoallergenic Wax and 30 Liners- No Scents Or Dyes Added  @ Binders Art Supplies and Frames Store: Binders Art Supplies and Frames Price: $3.99 USD • Compare Prices ► Condition: new Paraffin is derived from petroleum. It is relatively brittle and will flake when used alone for batik and therefore is commonly mixed with microcrystallin e wax. It can also be used for cleaning brushes in encaustic. Comes in pellets. Melting point is 130 degrees F. From Google Product Search: "paraffin" |
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