• Drying potassium tert-butoxide?

    Updated: 2012-02-29 19:54:14
    A recent reaction I did gave me a bi-product I'd expect if there was water in the reaction, I've checked all the other sources and they seem fine, the only possible source of moisture might be coming from an old bottle of potassium-tert butoxide I've been using; has anyone ever dried tBuOK? I've read one procedure that said to sublimate it, but I'd rather get a new bottle in that case, is there any other methods?

  • Re: How old are you?

    Updated: 2012-02-29 19:54:00
    24 right now....

  • Re: HPLC results

    Updated: 2012-02-29 19:17:29
    UserInfo : February 29, 2012, 09:24:45 AM Welcome , Guest Please login or register Did you miss your activation email 1 Hour 1 Day 1 Week 1 Month Forever Login with username , password and session length Forum Rules Read This Before Posting Home Help Search Login Register Search Chemical Forums ChemicalForums , Google Google Sponsors Content ChemBuddy ChemFeeds Chemical Forums Chemistry Blog Chem Reddit : Resources General Chem Dictionary Chemical Forums Chemistry Forums for Students Analytical Chemistry Forum Moderator : Borek HPLC results Pages : 1 Go Down previous next Print Author Topic : HPLC results Read 32 times 0 Members and 1 Guest are viewing this topic . Romeres Very New Member Mole Snacks : 0 0 Offline Posts : 1 HPLC results : on Today at 07:10:20 AM Hi . all Is it possible to

  • HPLC results

    Updated: 2012-02-29 18:10:20
    Hi all.Is it possible to predict results of HPLC and GC/MS, some online simultaion maybe?IF no, is there any big big library that contains very big amount of spectres of different substanceses?Compound which i looking for is quite rare(CAS number 5822-43-5)If none of it is possible, can someone recommend me research company which would obtain substance and do tests?Thanks

  • The “Magic” of Hydrogen Peroxide

    Updated: 2012-02-29 17:07:38
    “An Ounce of Hydrogen Peroxide is Worth a Pound of Cure,” prescribes the headline in a Parade magazine advertisement for Emily Thacker’s newest book, “The Magic of Hydrogen Peroxide.” Citing a medley of uses that rivals those of Windex in “My Big Fat Greek Wedding,” the ad boasts that trusty ol’ H2O2 can be used not [...]

  • Rational design can improve hydrogen fuel cell efficiency

    Updated: 2012-02-29 16:40:01
    (PhysOrg.com) -- Hydrogen fuel cells, in which the chemical energy of hydrogen is converted into electricity, offer the potential for a wide variety of applications, especially in transportation and power generation. Although hydrogen fuel cells are currently used on a small scale, making them commercially available for large-scale use requires improvements in two key areas: efficiency and cost-effectiveness. In a new study, scientists have designed tri-metallic electrocatalysts for hydrogen fuel cells that theoretically improve in both areas, outperforming the best platinum-based catalysts to date.

  • Chemistry in its element – hydrochloric acid

    Updated: 2012-02-29 16:04:35
    I think we’ve all had a bellyful of this week’s compound. In fact, we’d be in trouble if we hadn’t. Brian Clegg digests hydrochloric acid in this week’s Chemistry in its element podcast.

  • CLT #25: Benzene

    Updated: 2012-02-28 00:56:49
    Welcome back to CLT! This is the week my students learn about Electrophilic Aromatic Substitution See other CLT humor via Lab-Initio Enjoy!

  • Scientific Fraud Allegations at Pultroon University

    Updated: 2012-02-27 03:33:04
    Pultroon University, Guapo, Arizona.  A scandal has rocked the Institute of Quantum Spot Physics at Pultroon University. A graduate student and supervising faculty member stand accused of academic fraud. The office of University Chancellor Blodwin A. Gatwick has released a statement indicating the matter was under internal investigation. Associate professor Corey Irwin was placed on administrative leave while the graduate student, [...]

  • Plasma

    Updated: 2012-02-24 01:41:38
    Today I found myself peering at the lovely lavender glow of opaque argon plasma through the viewing screen of a gleaming new instrument. The light-emitting 8000 K plasma sits apparently still alongside the conical metal skimmer. Somewhere a Dewar was quietly releasing a stream of argon into a steel tube that was bent in crisp military angles into and through [...]

  • Bubble bubble, Windows trouble

    Updated: 2012-02-23 22:43:31
    The latest rev of Windows 7 and MS office is driving me freaking nuts. Used to be that I could do a graph in Excel and copy it cleanly into Word.  That convenience seems to be absent in the latest rev. What fails to copy are the arrows and text boxes that I add to the [...]

  • CLT #24: Universal Solvent

    Updated: 2012-02-21 13:44:47
    Welcome back to CLT! No need to cite a source today. This one's an azmanam original! See other CLT humor via ME! (click for larger) Enjoy!

  • This week on Chemistry World

    Updated: 2012-02-20 16:07:05
    12 February 2012: Have something to say about an article you’ve read on Chemistry World this week? Leave your comments below… EPA sets safe dioxin level Exposure threshold draws praise from scientists and environmentalist but industry remains nonplussed Japan merges science centres to cut costs Austerity measures spark concern about research quality among academics Simple sensitive TNT detection [...]

  • Fox Investigates Chem Labs

    Updated: 2012-02-18 05:18:43
    Good God.  Fox News in Philly is now investigating university chemistry labs for “high risk” chemicals.  The shabby quality of this piece is beyond words. The entire thrust is this- Chemicals as bomb raw materials. An invitation to walk right in and grab all the corrosives and explosives you can. Note the law enforcement images [...]

  • Agilent MP AES. The New AA.

    Updated: 2012-02-17 00:33:49
    Agilent is excited about their new 4100 MP-AES system. The initials stand for Microwave Plasma Atomic Emission Spectrometer. The instrument uses the magnetic component of the microwave energy to produce a nitrogen plasma at ca 5000 K, through which the sample is drawn. The monochrometer looks down the axis of the plasma torch. The detector is constructed to [...]

  • Rhodochrosite Sample

    Updated: 2012-02-15 18:39:59
    Rhodochrosite is a mineral composed of MnCO3. The specimen above is in no way exceptional, other than as a curio. The mass is comprised of rhodochrosite, galena, pyrite, what looks like quartz, and possibly a trace of a gold colored metal. The photo below shows the galena, or PbS. The photos were taken with a USB [...]

  • CLT #23: Valentine's Day

    Updated: 2012-02-14 14:56:04
    Welcome back to CLT! Happy Valentine's Day! See other CLT humor via SMBC Enjoy!

  • What a Key Supply-Sider Says Now

    Updated: 2012-02-13 00:50:55
    Here is a link to an interesting interview of Bruce Bartlett, one of Jack Kemp’s architects of supply side economics. Certainly no liberal, Bartlett has many insider views on current republican intentions on taxation and the deconstruction of federal government. If certain politicians and their backers aren’t more careful, their plan to deconstruct government by intentionally [...]

  • CLT #22: Partial Credit

    Updated: 2012-02-07 13:42:18
    Welcome back to CLT! My students have their first exam of the semester this week. MS, IR, and NMR spectroscopy. Wish them luck I have no idea what the origin of this cartoon is. It was on the office door of one of the professors at UNC where I did my Ph.D. I asked him [...]

  • Respecting liquid hydrocarbons as a natural wonder

    Updated: 2012-02-03 23:51:09
    I just had a conversation with a colleague who is somewhat mainstream in his/her thinking. The question came up as to why can’t we be energy independent.  What is taking so long with the electric cars and natural gas powered … everything? When can we break away from middle eastern petroleum? In the public sphere, [...]

  • Most accessed articles in January

    Updated: 2012-02-03 14:57:38
    Categories All General Chemistry Marketing OA in the Developing World Conferences Presentations Open Access Editorial Board About We want to hear from you Mail us at editorial chemistrycentral.com Search Links Our blogs BioMed Central Blog Chemistry Central Blog Open Repository Blog Open Access Central BioMed Central Chemistry Central Other links F1000 Biology F1000 Medicine ChEBI Chem DB ChemRefer ChemSpider Chemists Without Borders Experimental Data Checker IUPAC Links for Chemists Process Analytical Technology PubChem WebElements eMolecules Archive February 2012 Mon Tue Wed Thu Fri Sat Sun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Today Chemistry Central Blog Friday Feb 03, 2012 Most accessed articles in January Take a look at our ten most accessed

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