• Re: Chemical to use on RC car tires on asphalt

    Updated: 2009-12-31 10:27:46
    Anyone? Did I leave out some sort of important information required to answer?

  • Re: DMF removal by extraction

    Updated: 2009-12-31 10:16:45
    I've confused too.... I need to get rid of the TEA from my mixture which is (TEA + DMF + derivative of amoxicillin ).TEA has splash spot on TLC as u can see in this image ( the far right spot)I want to get the derivative of amoxicillin pure by using a column. Since TEA has this splashy properties I think it could give rises to problems during the separation, so I decided to isolate this compound first by other technique before using the column.Thank for your suggestion that is using the vacuum, I will study it with my professor. I will be happy If you have any further suggestions.

  • Re: How can I preserve organic matter

    Updated: 2009-12-31 09:51:27
    Thank you so much for your replies. I will get straight onto it and let you know the outcome.

  • Re: Finding Boiling Temperature

    Updated: 2009-12-31 07:19:00
    Quote from: UG on Yesterday at 02:20:01 PMTemperature should be in Kelvin I do believe...Yes. I'm sorry I overlooked that.

  • Re: Chemistry Stock Photo

    Updated: 2009-12-31 06:57:57
    Quote from: billnotgatez on Yesterday at 01:13:36 AMi am not sure what the rules arebut you might checkWIKIOh i never even thought of that. Had a look at the terms of use, and plenty of the images are free for use by the public. Thanks very much for the suggestion!

  • Best of SimpleChemConcepts 2009: HAPPY NEW YEAR

    Updated: 2009-12-30 10:41:55
    Dear Readers and Subscribers, All of us here at SimpleChemConcepts.com & Winners Education Group (parent company) would like to sincerely wish you and your family “Happy New Year” and a most wonderful festive season! This is that special time of year to reflect on all the things we are so grateful for and also a time [...]

  • Sample Journal of Chemical Education Now Available Online

    Updated: 2009-12-29 19:30:00
    The January 2010 sample issue of the Journal of Chemical Education (JCE) is now available for viewing on the ACS Web Editions Platform. This issue marks the official beginning of the partnership between ACS Publications and the ACS Division of Chemical Education in the co-publication of the premier journal for chemical education. You can view a video interview with Editor-in-Chief Norbert J. Pienta, in which he affirms his commitment to continue publication of "all of the high value, quality material that people have expected all these years," and notes the addition of Associate Editors to help assign reviewers and adjudicate manuscripts as well an Editorial Advisory Board to help shape the vision for the journal of the future.

  • Extreme makeover chemistry style

    Updated: 2009-12-29 14:46:50
    In revisiting a chemical reaction that's been in the literature for several decades and adding a new wrinkle of their own, scientists with Berkeley Lab and the University of California (UC) Berkeley have discovered a mild and relatively inexpensive procedure for removing oxygen from biomass. This procedure, if it can be effectively industrialized, could allow a number of of today's petrochemical products, including plastics, to instead be made from biomass........

  • Chemists synthesize herbal alkaloid

    Updated: 2009-12-29 14:46:50
    The club moss Lycopodium serratum is a creeping, flowerless plant used in homeopathic medicine to treat a wide variety of ailments. It contains a potent brew of alkaloids that have attracted considerable scientific and medical interest. However, the plant makes a number of of these compounds in extremely low amounts, hindering efforts to test their therapeutic value........

  • New perspective on periodic table

    Updated: 2009-12-29 14:46:50
    Transforming lead into gold is an impossible feat, but a similar type of "alchemy" is not only possible, but cost-effective too. Three Penn State scientists have shown that certain combinations of elemental atoms have electronic signatures that mimic the electronic signatures of other elements. As per the team's leader A. Welford Castleman Jr., Eberly Distinguished Chair in Science and Evan Pugh Professor in the Departments of Chemistry and Physics, "the findings could lead to much cheaper materials for widespread applications such as new sources of energy, methods of pollution abatement, and catalysts on which industrial nations depend heavily for chemical processing"........

  • Learning from Snowflake chemistry

    Updated: 2009-12-29 14:46:50
    There is more to the snowflake than its ability to delight schoolchildren and snarl traffic. The structure of the frosty flakes also fascinate ice chemists like Purdue University's Travis Knepp, a doctoral candidate in analytical chemistry who studies the basics of snowflake structure to gain more insight into the dynamics of ground-level, or "tropospheric," ozone depletion in the Arctic........

  • Novel hydrogen storage method

    Updated: 2009-12-29 14:46:50
    Researchers at the Carnegie Institution have found for the first time that high pressure can be used to make a unique hydrogen-storage material. The discovery paves the way for an entirely new way to approach the hydrogen-storage problem. The scientists observed that the normally unreactive, noble gas xenon combines with molecular hydrogen (H2) under pressure to form a previously unknown solid with unusual bonding chemistry. The experiments are the first time these elements have been combined to form a stable compound. The discovery debuts a new family of materials, which could boost new hydrogen technologies. The paper is reported in the November 22, 2009, advanced online publication of Nature Chemistry.......

  • memorise all 112 elements of periodic table

    Updated: 2009-12-29 14:46:50
    Is there an easy way to memorise all 112 elements? Yes, there is. You could make up a melody, and sing them. Melody is a great mnemonic device. The idea was used by Carleton... .......

  • Multitasking Micro-rings

    Updated: 2009-12-24 14:00:00
    Arrays of tiny functionalized silicon rings could streamline detection of disease indicators.

  • Electrodes spy serotonin in vivo

    Updated: 2009-12-24 14:00:00
    Measuring the neurotransmitter in vivo has remained an elusive research goal, until now.

  • Older is Better

    Updated: 2009-12-24 14:00:00
    Protein Analysis: Microarray performance is degraded with newer glass slides.

  • Dec Holidays ‘O’ Levels Chemistry Headstart & Revision Mastery Workshops – Successful Completion

    Updated: 2009-12-24 11:38:55
    With Dec 2009 coming to an end, we have successfully conducted the following December Holidays Chemistry Mastery Workshops for GCE ‘O’ Levels & IP students: 1) Chemistry Headstart Workshop (for Sec 3 2010 students) 2) Atomic Structure & Chemical Bondings Mastery Workshop (for Sec 4 2010 students) 3) Acids, Bases & Preparation of Salts Mastery Workshop (for Sec 4 [...]

  • Perth, Western Australia – A place of fun, holiday & Chemistry

    Updated: 2009-12-20 09:06:23
    Sean with Kangaroos in Caversham Wildlife Park This blogpost has been delayed for quite awhile, after we  (Winners Education Group) came back from our backpacking trip to Perth, Western Australia in early December. The theme of this chemistry blog is meant primarily for students / educators / parents to know more about Chemistry theories and how they [...]

  • Approaches to element 120 (unbinilium)

    Updated: 2009-12-17 20:37:41
    You are here : WebElements Periodic Table Nexus WebElements Nexus WebElements : the periodic table on the web Search this site : Home Elements Compounds Periodicity Forum News Chemistry Site index References WebElements blog Contact Chemistry literature feeds ACS journals J . Am . Chem . . Soc Inorg . . Chem Organometallics Acc . Chem . . Res Chem . . Mat J . Organic . Chem J . Phys . Chem . A J . Phys . Chem . B Langmuir Macromolecules Nanoletters RSC journals Chem . . Commun Dalton Transactions Chem . Soc . . Rev Faraday . Disc J . Material . Chem Org . and Biomol . . Chem Chemical Education Merlot chemistry NASA podcasts R.Science Molecules MolBase Oxford MotM Science blogs RSC World blog ScienceBlogs Reactive Reports Sciencebase Chemistry Lead Approaches to element 120 unbinilium Approaches to element 120 unbinilium Attempts have been made at GSI to make element 120 unbinilium Several new elements have been made at GSI in the last few years . However after 120 days no decay chain of element 120 was found . With the total number of 2.6 10 19 projectiles which impinged upon the target , it deduced that the stability in the region around Z=120, N=184 is not exceptionally high with

  • Nanowiring for neurons

    Updated: 2009-12-17 14:00:00
    Gold nanowires electrochemically detect dopamine.

  • How Thiols Photoswitch Cyanine Dyes

    Updated: 2009-12-17 14:00:00
    Mechanism will aid design of dyes for imaging biological systems with super-resolution fluorescence microscopy.

  • WebElements chemistry nexus

    Updated: 2009-12-16 00:21:18
    You are here : WebElements Periodic Table Nexus WebElements Nexus WebElements : the periodic table on the web Search this site : Home Elements Compounds Periodicity Forum News Chemistry Site index References WebElements blog Contact Chemistry literature feeds ACS journals J . Am . Chem . . Soc Inorg . . Chem Organometallics Acc . Chem . . Res Chem . . Mat J . Organic . Chem J . Phys . Chem . A J . Phys . Chem . B Langmuir Macromolecules Nanoletters RSC journals Chem . . Commun Dalton Transactions Chem . Soc . . Rev Faraday . Disc J . Material . Chem Org . and Biomol . . Chem Chemical Education Merlot chemistry NASA podcasts R.Science Molecules MolBase Oxford MotM Science blogs RSC World blog ScienceBlogs Reactive Reports Sciencebase Chemistry Periodic Table WebElements chemistry nexus WebElements chemistry nexus 16 December , 2009 12:21 by WebElements OK started reorganisation of one WebElements area , the chemistry nexus The nexus will now bring together news , articles , the WebElements blog , and eventually the Webelements bibliography , and more . It will also contain chemistry content related to WebElements , for instance , sections on the chemistry of the various groups or

  • Depletion of the Ozone Layer in the 21st Century

    Updated: 2009-12-16 00:16:45
    You are here : WebElements Periodic Table Nexus WebElements Nexus WebElements : the periodic table on the web Search this site : Home Elements Compounds Periodicity Forum News Chemistry Site index References WebElements blog Contact Chemistry literature feeds ACS journals J . Am . Chem . . Soc Inorg . . Chem Organometallics Acc . Chem . . Res Chem . . Mat J . Organic . Chem J . Phys . Chem . A J . Phys . Chem . B Langmuir Macromolecules Nanoletters RSC journals Chem . . Commun Dalton Transactions Chem . Soc . . Rev Faraday . Disc J . Material . Chem Org . and Biomol . . Chem Chemical Education Merlot chemistry NASA podcasts R.Science Molecules MolBase Oxford MotM Science blogs RSC World blog ScienceBlogs Reactive Reports Sciencebase Chemistry Environmental chemistry Atmospheric chemistry Depletion of the Ozone Layer in the 21st Century Depletion of the Ozone Layer in the 21st Century A paper in Angewandte Chemie suggests that models predict that climate change will lead to an accelerated recovery of the ozone layer . However , reliable predictions are complicated by the ozone-depleting effect of N 2 O . If emissions of this greenhouse gas remain at current levels , by 2050 they

  • Independent Verification of Element 114 (ununquadium)

    Updated: 2009-12-15 09:33:38
    You are here : WebElements Periodic Table Nexus WebElements Nexus WebElements : the periodic table on the web Search this site : Home Elements Compounds Periodicity Forum News Chemistry Site index References WebElements blog Contact Chemistry literature feeds ACS journals J . Am . Chem . . Soc Inorg . . Chem Organometallics Acc . Chem . . Res Chem . . Mat J . Organic . Chem J . Phys . Chem . A J . Phys . Chem . B Langmuir Macromolecules Nanoletters RSC journals Chem . . Commun Dalton Transactions Chem . Soc . . Rev Faraday . Disc J . Material . Chem Org . and Biomol . . Chem Chemical Education Merlot chemistry NASA podcasts R.Science Molecules MolBase Oxford MotM Science blogs RSC World blog ScienceBlogs Reactive Reports Sciencebase Chemistry Nuclear chemistry Independent Verification of Element 114 ununquadium Independent Verification of Element 114 ununquadium Workers in the USA verify the production of element 114 in the reaction of 244-MeV 48 Ca with 242 Pu . Two chains of time- and position-correlated decays were assigned to 286 114 and 287 114. The observed decay modes , half-lives , and decay energies agree with the original claims of researchers at the Joint Institute for

  • Silly Find from the Internets

    Updated: 2009-12-15 08:21:00
    Not much today. I saw this earlier and remembered having one of these moments back in G-chem that made me want to break the stupid buret. Actually, that happened on the last day of the semester, during checkout, after I washed it and was walking to the stockroom to return it. I forgot how long [...]

  • Royal Society Digital Journal Archive Free from 23 Nov to 28 Feb 2010

    Updated: 2009-12-15 00:50:58
    You are here : WebElements Periodic Table Nexus WebElements Nexus WebElements : the periodic table on the web Search this site : Home Elements Compounds Periodicity Forum News Chemistry Site index References WebElements blog Contact Chemistry literature feeds ACS journals J . Am . Chem . . Soc Inorg . . Chem Organometallics Acc . Chem . . Res Chem . . Mat J . Organic . Chem J . Phys . Chem . A J . Phys . Chem . B Langmuir Macromolecules Nanoletters RSC journals Chem . . Commun Dalton Transactions Chem . Soc . . Rev Faraday . Disc J . Material . Chem Org . and Biomol . . Chem Chemical Education Merlot chemistry NASA podcasts R.Science Molecules MolBase Oxford MotM Science blogs RSC World blog ScienceBlogs Reactive Reports Sciencebase Chemistry Chemical education Royal Society Digital Journal Archive Free from 23 Nov to 28 Feb 2010 Royal Society Digital Journal Archive Free from 23 Nov to 28 Feb 2010 Royal Society Digital Journal Archive Free from 23 Nov to 28 Feb 2010 The year 2010 is going to be a very special year at the Royal Society . As the worlds oldest science academy , we are looking forward to celebrating our 350th anniversary and to mark this special occasion we are making

  • IAEA Analysis of Uranium Supply to 2050

    Updated: 2009-12-14 20:00:43
    You are here : WebElements Periodic Table Nexus WebElements Nexus WebElements : the periodic table on the web Search this site : Home Elements Compounds Periodicity Forum News Chemistry Site index References WebElements blog Contact Chemistry literature feeds ACS journals J . Am . Chem . . Soc Inorg . . Chem Organometallics Acc . Chem . . Res Chem . . Mat J . Organic . Chem J . Phys . Chem . A J . Phys . Chem . B Langmuir Macromolecules Nanoletters RSC journals Chem . . Commun Dalton Transactions Chem . Soc . . Rev Faraday . Disc J . Material . Chem Org . and Biomol . . Chem Chemical Education Merlot chemistry NASA podcasts R.Science Molecules MolBase Oxford MotM Science blogs RSC World blog ScienceBlogs Reactive Reports Sciencebase Chemistry International IAEA Analysis of Uranium Supply to 2050 IAEA Analysis of Uranium Supply to 2050 The IAEA is the world's centre of cooperation in the nuclear field . It was set up as the world's Atoms for Peace organization in 1957 within the United Nations family . The Agency works with its Member States and multiple partners worldwide to promote safe , secure and peaceful nuclear . technologies The IAEA has published Analysis of Uranium Supply

  • Dissolution is the solution to pollution?

    Updated: 2009-12-13 21:37:55
    Want a solution to cremation pollution? In the 9th annual “Year in Ideas” issue, the New York Times Sunday Magazine covers a new Scottish company that wants people to “resomate” human remains as opposed to traditional cremation. The company’s web site mentions that resomation “uses less energy than cremation and produces significantly less CO2 and avoids [...]

  • Might future fuel cells be nickel based?

    Updated: 2009-12-10 08:59:36
    You are here : WebElements Periodic Table Nexus WebElements Nexus WebElements : the periodic table on the web Search this site : Home Elements Compounds Periodicity Forum News Chemistry Site index References WebElements blog Contact Chemistry literature feeds ACS journals J . Am . Chem . . Soc Inorg . . Chem Organometallics Acc . Chem . . Res Chem . . Mat J . Organic . Chem J . Phys . Chem . A J . Phys . Chem . B Langmuir Macromolecules Nanoletters RSC journals Chem . . Commun Dalton Transactions Chem . Soc . . Rev Faraday . Disc J . Material . Chem Org . and Biomol . . Chem Chemical Education Merlot chemistry NASA podcasts R.Science Molecules MolBase Oxford MotM Science blogs RSC World blog ScienceBlogs Reactive Reports Sciencebase Chemistry Catalysis Might future fuel cells be nickel based Might future fuel cells be nickel based There seems to be a possibility that nickel compounds might help in the electrolysis of water , the reaction at the centre of hydrogen fuel cells . Researchers at the Joseph Fourier University in Grenoble , and at the French Atomic Energy Commission in Gif-sur-Yvette and attached a nickel compound that mimics hydrogenase enzymes catalysts and attached it

  • 2010 Chemistry: Sec 3 Headstart & Sec 4 Revision (Dec Holiday Programmes) – Early Bird Registration

    Updated: 2009-12-01 11:47:30
    Now, just a quick note for parents and students that are eagerly looking forward to our December Holidays’ Chemistry Programmes. Based on numerous requests from parents, we will be adding a new Chemistry Headstart Workshop for Sec 3 (2010) students. A) Sec 3 (2010) Chemistry Headstart Workshop Q) Who should attend this workshop? Ans: Every students that is going [...]

  • Chinese periodic table poster

    Updated: 2009-11-28 17:51:37
    You are here : WebElements Periodic Table Nexus WebElements Nexus WebElements : the periodic table on the web Search this site : Home Elements Compounds Periodicity Forum News Chemistry Site index References WebElements blog Contact Chemistry literature feeds ACS journals J . Am . Chem . . Soc Inorg . . Chem Organometallics Acc . Chem . . Res Chem . . Mat J . Organic . Chem J . Phys . Chem . A J . Phys . Chem . B Langmuir Macromolecules Nanoletters RSC journals Chem . . Commun Dalton Transactions Chem . Soc . . Rev Faraday . Disc J . Material . Chem Org . and Biomol . . Chem Chemical Education Merlot chemistry NASA podcasts R.Science Molecules MolBase Oxford MotM Science blogs RSC World blog ScienceBlogs Reactive Reports Sciencebase Chemistry Asia China Chinese periodic table poster Chinese periodic table poster 28 November , 2009 17:51 by WebElements Chinese periodic table traditional I'm pleased to announce that you can now buy a Chinese periodic table poster traditional at the WebElements . shop Website address : nbsp Chinese periodic table poster Bookmark Search this post with : WebElements's blog : Tags China Periodic Table Taiwan Hong Kong Keyword search More options Guided

  • Orbitron atomic orbitals poster

    Updated: 2009-11-28 17:47:25
    You are here : WebElements Periodic Table Nexus WebElements Nexus WebElements : the periodic table on the web Search this site : Home Elements Compounds Periodicity Forum News Chemistry Site index References WebElements blog Contact Chemistry literature feeds ACS journals J . Am . Chem . . Soc Inorg . . Chem Organometallics Acc . Chem . . Res Chem . . Mat J . Organic . Chem J . Phys . Chem . A J . Phys . Chem . B Langmuir Macromolecules Nanoletters RSC journals Chem . . Commun Dalton Transactions Chem . Soc . . Rev Faraday . Disc J . Material . Chem Org . and Biomol . . Chem Chemical Education Merlot chemistry NASA podcasts R.Science Molecules MolBase Oxford MotM Science blogs RSC World blog ScienceBlogs Reactive Reports Sciencebase Chemistry Theoretical chemistry Atomic structure Orbitron atomic orbitals poster Orbitron atomic orbitals poster 28 November , 2009 17:47 by WebElements The Orbitron Atomic Orbitals poster I'm pleased to announce that you can now buy the Orbitron atomic orbitals poster at the WebElements shop . You can visit The Orbitron to see these images and also animations showing representing the orbital . functions Website address : nbsp Buy Orbitron Atomic

  • More SEM fun

    Updated: 2009-11-26 19:31:39
    Happy Thanksgiving, all! ASPEX is initiating a Name That Sample contest.  Head over to the ASPEX site to cast your vote.  Voting ends 11:59pm Friday night.  The winner will win a 1Gb flash drive courtesy of ASPEX.  Here’s Volume 1’s mystery picture:

  • MS makes identification of clinical pathogens a cinch

    Updated: 2009-11-25 14:00:00
    MALDI TOFMS with special software is poised to displace traditional biochemical tests for pathogen identification in clinical laboratories.

  • Introductory Sections (for a Paper or Your Thesis)

    Updated: 2009-11-18 15:47:09

  • Top-down typing of unknown microorganisms

    Updated: 2009-11-12 14:00:00
    A method that characterizes whole proteins by MS and cross-checks their sequences against a genomic database may aid in the identification and taxonomic profiling of unknown microorganisms—and have implications for medicine and biodefense.

  • Thank You!

    Updated: 2009-11-12 06:34:43
    Just a quick note to thank: 1) Students that have joined and completed our weekly cosaching programmes (under Ultimate Leap Programme) as well as our various Chemistry Workshops and June Intensive Revision Programmes. It has been my pleasure to be able to coach you all. Remember this saying: “When the students is ready, the master will [...]

  • Droplet-based microfluidics reveals dynamics of pancreatic islet secretion

    Updated: 2009-11-05 14:00:00

  • Cut-And-Paste GFP

    Updated: 2009-11-05 14:00:00
    Protein Engineering: Method opens green fluorescent protein to better scrutiny, design

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