Organic Chemistry Message Board http://organicchemistrymessageboard.yuku.com/directory en-us Copyright 2006, Yuku feeds@yuku.com (FeedMaster) webmaster@yuku.com (WebMaster) Fri, 08 Jan 2010 00:00:00 GMT Wed, 06 Jan 2010 19:01:25 GMT Yuku Feeds 1.0 http://blogs.law.harvard.edu/tech/rss 60 Yuku http://static.yuku.com//feed/bypass/images/button-yuku.png http://organicchemistrymessageboard.yuku.com/directory Yuku - free hosted forums and profiles 88 31 {pics-1.1 "http://www.icra.org/ratingsv02.html" l gen true for "http://yuku.com" r (nz 1 vz 1 lz 1 oz 1 cz 1 ) "http://www.rsac.org/ratingsv01.html" l gen true for "http://yuku.com" r (n 0 s 0 v 0 l 0 )) Search Search Domain q http://yuku.com/search/direct/ <![CDATA[ Lack of adequate feedstock, poor business atmosphere weaken recovery in Ind... ]]> http://organicchemistrymessageboard.yuku.com/topic/1728/t/Lack--adequate-feedstock-poor-business-atmosphere-weaken-rec.html Lack of adequate feedstock and a poor business environment are undermining the recovery in Indonesian polymer output, according to a report by Business Monitor International (BMI).
In 2009, the Indonesian petrochemicals industry had olefins production capacities of 620,000 tpa ethylene and 655,000 mln tpa propylene. In the aromatics segment, Indonesia has plants with combined capacities of 335,000 tpa feeds@yuku.com (sunnye) http://organicchemistrymessageboard.yuku.com/topic/1728 Wed, 06 Jan 2010 19:01:25 GMT <![CDATA[ The Properties of the plastic of ABS ]]> http://organicchemistrymessageboard.yuku.com/topic/1727/t/The-Properties-of-the-plastic-of-ABS.html ABS is derived from acrylonitrile, butadiene, and styrene. Acrylonitrile is a synthetic monomer produced from propylene and ammonia; butadiene is a petroleum hydrocarbon obtained from the C4 fraction of steam cracking; styrene monomer is made by dehydrogenation of ethyl benzene - a hydrocarbon obtained in the reaction of ethylene and benzene.

The advantage... ]]> feeds@yuku.com (sunnye) http://organicchemistrymessageboard.yuku.com/topic/1727 Wed, 06 Jan 2010 18:58:29 GMT <![CDATA[ What Is Dihydroxyacetone? ]]> http://organicchemistrymessageboard.yuku.com/topic/1726/t/What-Is-Dihydroxyacetone-.html Dihydroxyacetone, also known as DHA or glycerone, is a common active ingredient in tanning lotions or sprays designed for sunless use. A simple carbohydrate, dihydroxyacetone is crated from sugar beets or sugar cane and the glycerin fermentation process. It can also be used in wine making.

Though colorless, DHA stains the skin on contact. It does so by reacting with dead skin cells in the... ]]> feeds@yuku.com (sunnye) http://organicchemistrymessageboard.yuku.com/topic/1726 Tue, 05 Jan 2010 19:10:17 GMT <![CDATA[ Valine functions ]]> http://organicchemistrymessageboard.yuku.com/topic/1725/t/Valine-functions.html As a branched-chain amino acid (BCAA), valine has been found useful in treatments involving muscle, mental, and emotional upsets, and for insomnia and nervousness. The branched-chain amino acids (BCAAs) are needed for the maintenance of muscle tissue and appear to preserve muscle stores of glycogen (a storage form of carbohydrate that can be converted into energy). BCAAs serve as... ]]> feeds@yuku.com (sunnye) http://organicchemistrymessageboard.yuku.com/topic/1725 Fri, 25 Dec 2009 00:54:59 GMT <![CDATA[ Chair Structure ]]> http://organicchemistrymessageboard.yuku.com/topic/1724/t/Chair-Structure.html

I have no clue why that one is incorrect, to me they all look right.
Any help?
]]> feeds@yuku.com (Sayff) http://organicchemistrymessageboard.yuku.com/topic/1724 Sun, 20 Dec 2009 11:59:03 GMT <![CDATA[ 4-(2-Aminoethyl)benzene sulfonamide ]]> http://organicchemistrymessageboard.yuku.com/topic/1723/t/4-2-Aminoethyl-benzene-sulfonamide.html 4-(2-Aminoethyl)benzene sulfonamide is white to yellowish crystalline powder, it is a chemical with formula C8H12N2O2S. Its melting point is 150-152 °C. It is stable under normal temperatures and pressures.
Storage of... ]]> feeds@yuku.com (sunnye) http://organicchemistrymessageboard.yuku.com/topic/1723 Sat, 12 Dec 2009 01:05:01 GMT <![CDATA[ 6-Methylheptanoic acid ]]> http://organicchemistrymessageboard.yuku.com/topic/1722/t/6-Methylheptanoic-acid.html 6-Methylheptanoic acid is a chemical with formula C8H16O2. It has many synonyms, such as: ISOOCTANOIC ACID;6-METHYLHEPTANOIC ACID;Heptanoic acid, 6-methyl-.

]]> feeds@yuku.com (sunnye) http://organicchemistrymessageboard.yuku.com/topic/1722 Fri, 11 Dec 2009 05:09:59 GMT <![CDATA[ 2,5-Diaminobenzenesulfonic acid ]]> http://organicchemistrymessageboard.yuku.com/topic/1721/t/2-5-Diaminobenzenesulfonic-acid.html 2,5-Diaminobenzenesulfonic acid is violet powder with formula C6H8N2O3S. Its melting point is 298-300 °C, and it is very soluble in water. It is stable under normal temperatures and pressures. ]]> feeds@yuku.com (sunnye) http://organicchemistrymessageboard.yuku.com/topic/1721 Fri, 11 Dec 2009 04:46:49 GMT <![CDATA[ Esterification of carboxylic acid salt with water sensitive alkyl halide ]]> http://organicchemistrymessageboard.yuku.com/topic/1720/t/Esterification--carboxylic-acid-salt--water-sensitive-alkyl-.html feeds@yuku.com (khoji) http://organicchemistrymessageboard.yuku.com/topic/1720 Fri, 11 Dec 2009 04:11:00 GMT <![CDATA[ Ascaridole ]]> http://organicchemistrymessageboard.yuku.com/topic/1719/t/Ascaridole.html Ascaridole was the first and for a long time only discovered naturally occurring organic peroxide. The structure was resolved by Otto Wallach in 1912,[2] but the first synthesis was done by Karl Ziegler in 1944.[3] The synthesis started from α-Terpinene which reacts with oxygen under the influence of chlorophyll and light. Under these conditions singlet oxygen is generated which is reacting in a Diels-Alder reaction... ]]> feeds@yuku.com (lookchem) http://organicchemistrymessageboard.yuku.com/topic/1719 Tue, 08 Dec 2009 18:08:09 GMT <![CDATA[ Grignard reagents ]]> http://organicchemistrymessageboard.yuku.com/topic/1718/t/Grignard-reagents.html magnesium metal .The reaction is conducted by adding the organic halide to a suspension of magnesium in an ether, which provides ligands required to stabilize the organomagnesium compound. Typical solvents are diethyl ether and tetrahydrofuran. Oxygen and protic solvents such as water or alcohols are not compatible with Grignard reagents. The reaction proceeds through single electron transfer.
Grignard... ]]> feeds@yuku.com (lookchem) http://organicchemistrymessageboard.yuku.com/topic/1718 Tue, 08 Dec 2009 18:06:52 GMT <![CDATA[ Ascaridole ]]> http://organicchemistrymessageboard.yuku.com/topic/1717/t/Ascaridole.html Ascaridole was the first and for a long time only discovered naturally occurring organic peroxide. The structure was resolved by Otto Wallach in 1912, but the first synthesis was done by Karl Ziegler in 1944.[3] The synthesis started from α-Terpinene which reacts with oxygen under the influence of chlorophyll and light. Under these conditions singlet oxygen is generated which is reacting in a Diels-Alder reaction with... ]]> feeds@yuku.com (lookchem) http://organicchemistrymessageboard.yuku.com/topic/1717 Tue, 08 Dec 2009 18:01:52 GMT <![CDATA[ Toxicological of Near-infrared laser dyes 830 (134127-48-3) ]]> http://organicchemistrymessageboard.yuku.com/topic/1716/t/Toxicological-of-Near-infrared-laser-dyes-830-134127-48-3-.html 134127-48-3) may cause skin and eye irritation.Inhalation of dust may be harmful.So when handing,should avoid breathing dust.Avoid contact with eyes, skin or clothing.Wash thoroughly after handling.Wash contaminated clothing prior to reuse.Ingestion may irritate gastrointestinal tract. ]]> feeds@yuku.com (vivianbao) http://organicchemistrymessageboard.yuku.com/topic/1716 Tue, 08 Dec 2009 03:02:05 GMT <![CDATA[ about LF STR-D ]]> http://organicchemistrymessageboard.yuku.com/topic/1715/t/about-LF-STR-D.html 2-(2-(4-Methoxyphenyl)ethenyl)-4,6-bis(trichloromethyl)-1,3,5-triazine (42573-57-9),http://organicchemistrymessageboard.yuku.com/topic/1715 Tue, 08 Dec 2009 02:53:29 GMT <![CDATA[ Identify structure of unkown compound from NMR, IR, and mass spectrum ]]> http://organicchemistrymessageboard.yuku.com/topic/1714/t/Identify-structure--unkown-compound--NMR-IR--mass-spectrum.html
http://img.photobucket.com/albums/v31/PaperTigers/problem1pg1.jpg
feeds@yuku.com (mandapanda1776) http://organicchemistrymessageboard.yuku.com/topic/1714 Mon, 07 Dec 2009 13:31:14 GMT <![CDATA[ Macaroni Grill wine? ]]> http://organicchemistrymessageboard.yuku.com/topic/1713/t/Macaroni-Grill-wine-.html
Bad assumption. Do you think the makers of "no-name" colas purchase from Coca-Cola or Pepsico? Or is it that the no-namers simply pay someone else to produce the product for them?

It would be much more expensive to purchase a name brand wine for relabeling, rather than to simply purchase bulk wine.

At any rate, MacG wine is produced exclusively... ]]> feeds@yuku.com (sunnye) http://organicchemistrymessageboard.yuku.com/topic/1713 Sat, 05 Dec 2009 05:50:47 GMT <![CDATA[ 3-Nitrobenzenesulfonamide ]]> http://organicchemistrymessageboard.yuku.com/topic/1712/t/3-Nitrobenzenesulfonamide.html 3-Nitrobenzenesulfonamide is light brown powder, and its melting point is 166-168 °C. It has many synonyms, such as: 3-nitro-benzenesulfonamid;3-Nitrobenzolesulfamide;Benzenesulfonamide, 3-nitro-;Benzenesulfonamide, m-nitro-;3-NITROBENZENESULFONAMIDE;M-NITROBENZENESULFONAMIDE;m-nitrobenzenesulphonamide;3-Nitrobenzenesulfonamide,98%.

]]> feeds@yuku.com (vivianbao) http://organicchemistrymessageboard.yuku.com/topic/1712 Fri, 04 Dec 2009 23:52:42 GMT <![CDATA[ 1-Bromo-2,5-Difluorobenzene ]]> http://organicchemistrymessageboard.yuku.com/topic/1711/t/1-Bromo-2-5-Difluorobenzene.html 1-Bromo-2,5-Difluorobenzene is coloress liquid, and it is in soluble in water. Its density is 1.708 g/mL at 25 °C.
1-Bromo-2,5-Difluorobenzene is flammable, so it should be keep away from sources of ignition. And store in a cool, dry place, or store in a tightly closed container.

]]> feeds@yuku.com (vivianbao) http://organicchemistrymessageboard.yuku.com/topic/1711 Fri, 04 Dec 2009 23:49:20 GMT <![CDATA[ synthesis of Tert-butyl chloride ]]> http://organicchemistrymessageboard.yuku.com/topic/1710/t/synthesis-of-Tert-butyl-chloride.html I have a chemistry lab involving the synthesis of Tert-butyl chloride, in one of the pre-lab questions
it asks you to show the mechanism of the possible product that can be formed ditert-butyl-ether insted of Tert-butyl chloride,
I tried to look everywhere I really did and found no answer, I would really appreciate if someone can point me in the right direction.

Thanks in advance,
Shay
]]> feeds@yuku.com (shay) http://organicchemistrymessageboard.yuku.com/topic/1710 Sat, 28 Nov 2009 20:37:24 GMT <![CDATA[ uses of MYRISTIC ACID ]]> http://organicchemistrymessageboard.yuku.com/topic/1709/t/uses-of-MYRISTIC-ACID.html MYRISTIC ACID is mainly used for production of surface-active agent,and it is used as a chemical reagent, but also for spices, and organic synthesis,and used in the manufacture of emulsifie,waterproof agent, curing agent, PVC heat stabilizers and plasticizers, etc., but also as raw materials of spices and pharmaceutical.

]]> feeds@yuku.com (vivianbao) http://organicchemistrymessageboard.yuku.com/topic/1709 Sat, 28 Nov 2009 06:16:37 GMT