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Tuesday, May 15

  1. page Wisner, Derek edited I found the article on the construction of artificial turf football fields and track to be very in…
    I found the article on the construction of artificial turf football fields and track to be very interesting. It is cool how chemistry is used to make things like football and track safer and easier to maintain. The polymers used that were laid in multiple layers serve different purposes, like reducing risk of injury and reducing stress on knees and legs. The rubber granules provide softer impacts when sliding or tacking, and helps keeps players safe. I wouldn't have originally thought that something like constructing an artificial turf football field would, or even could, require so much chemistry. The polymer track and football fields seem like a good idea and, even though they are more expensive than "regular fields", seem to be practically applying chemistry to the real world by helping to keep athletes safe.
    Derek,
    Yes overall the field is probably "safer" in some respects than a grass field but there are always some drawbacks. 5 stars. MW

    Derek Wisner
    Organic Report
    ...
    http://www.wolframalpha.com/entities/chemicals/bufotenine/wj/u8/py/
    Chemical and Physical Properties
    Density- 1.178g/cm^3
    Molar Mass- 204.27 g/mol

    Melting Point- 146-147° (419-420K)
    Boiling Point- 320°C (593K)
    ...
    No formal information is known about the reactivity of bufotenine because of its limited scientific uses
    Sources
    ...
    venom of certain Bufo toads, especially
    Bufotenine is also found in the seeds of the Anadenanthera tree, which is found in Carribean and Central/South America
    ...
    is largely rejected by scientistsdisputed
    Uses/Effects
    The most common use for bufotenine is as a street drug- it is used as an aphrodisiac and psychedelic drug
    Its effects on humans include tightness in the chest and nausea in small doses. In large amounts, it can cause blood circulation problems, respiratory arrest, and visual hallucinations of lights, colors, and patterns.
    ElevatedBufotenine can kill at high amounts (precise lethal dose is undetermined in humans), presumably by respiratory arrest
    Elevated
    levels of
    ...
    autistics, but theany cause-effect relationship
    (view changes)
    7:25 am
  2. file Fructose.ppt uploaded
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  3. file Fructose.ppt uploaded
    6:56 am
  4. page Swenor, Jenna edited ... C21H28O5 360.44 g/mol 220-224 Melting Point: 220-224 oC MP Boiling Point: Decomposes …
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    C21H28O5
    360.44 g/mol
    220-224Melting Point: 220-224 oC MP
    Boiling Point: Decomposes at 220 oC
    Stable

    {Untitled1.png}
    {pm_general_inject_knee_cortisone.jpg}
    ...
    http://en.wikipedia.org/wiki/Cortisone
    http://www.eorthopod.com/images/ContentImages/pm/pm_general_injections/pm_general_inject_knee_cortisone.jpg
    __http://www.sciencelab.com/msds.php?msdsId=9923559__
    (view changes)
    6:03 am

Monday, May 14

  1. page Young, Braden edited ... http://www.magidglove.com/Magid-T9338-Blue-Disposable-PowderFree-Nitrile-Gloves.aspx http://w…
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    http://www.magidglove.com/Magid-T9338-Blue-Disposable-PowderFree-Nitrile-Gloves.aspx
    http://www.wallpaper777.com/wallpapers.aspx?typeid=3167
    http://en.wikipedia.org/wiki/Digitalis
    (view changes)
    7:53 pm
  2. page Tran, Faith edited ... Stearic Acid - 13 May 2012 {stearic.gif} {stearic_acid_2.gif} Melting point 69.6 °C …
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    Stearic Acid - 13 May 2012
    {stearic.gif}
    {stearic_acid_2.gif}
    Melting point
    69.6 °C
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    C18H36O2
    {stearic_acid.jpg}
    ...
    acid group thatat the end.
    It is prepared by treatment of water at high pressures and temperatures, which is then distilled.
    Stearic acid is most usually used as a thickener or used to {candles.jpg} something waxy in everyday products like candles, soap, lotion and margarine.
    In candles, it is used to make the wax thicker and melt at a higher temperature.
    {deck_of_cards.jpg}
    For soap, it is an additive because it is not that soluble in water. It makes soap white and is the main "active" ingredient that makes you squeaky clean by binding the dirt so that water can wash it away.
    In lotion, it is used to thicken the lotion and allow the application to be smooth. It also lengthens shelf life.
    For margarine, it makes the margarine stable during cooking.
    It is also used to make oil pastels, cosmetics, fireworks (increases shelf life) and shampoos.
    When mixed with other compounds, it can be used to make lubricants for playing cards and is used in the plastering process.
    It
    is mainly
    ...
    fairly cheap. There is a lot more stearic acid in animal fat than in plant fat, but cocoa butter and shea butter is the exception (about 28-45% of which is stearic acid).
    http://www.wisegeek.com/what-are-the-different-uses-of-stearic-acid.htm
    http://en.wikipedia.org/wiki/Stearic_acid
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    5:19 pm
  3. 5:16 pm
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  5. page Rutter, Kyle edited ... People can have reactions to Advil but not the liquide gels {iStock_Advil[1].jpg} Child Da…
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    People can have reactions to Advil but not the liquide gels
    {iStock_Advil[1].jpg}
    Child Danger!
    {advilart[1].jpg}
    It looks a lot like candy which makes it a danger if kids find it in the home
    Synthesis:
    Synthesis:
    The original synthesis method was the following six steps:
    {640px-Boots_synthesis_of_ibuprofen[1].png}
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    206.26 g/mol
    Vapor Pressure 4.74x105 mmHg
    Child Danger!
    {advilart[1].jpg}
    It looks a lot like candy which makes it a danger if kids find it in the home

    http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=3672#x27
    http://en.wikipedia.org/wiki/Ibuprofen#History
    (view changes)
    1:26 pm

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