Organic Chemistry

Dear Fellows, If CO2 reacts with soultion of NaOH then we get NaHCO3 solution, Is it possible to exhaust CO2 from NaHCO3 solution by Shaking it or by creating Vacuum on it so it can exhaust absorbed CO2 and we can through it in atmosphere, i am thinking on this logic that if NaOH can absorb CO2 to become NaHCO3 then NaHCO3 can also becomes again NaOH by eliminating absorbed CO2. please guide if it is possible. Please forgive it doesn,t make a sense.

How do you carry out a TBA test to measure the level of lipid oxidation?

Hello dears, I am working on biogas, what i experienced so fare is following, 1. Darkness, temperature and slow steady mixing of manure with water starts bacterial attack in digester to produce biogas. 2. Biogas contains CO2 and H2S along with CH4 which have not a friendly role for combustion. 3. Caustic soda solution can remove CO2 from Biogas if it passes through it. 4. Iron filling if put in the way of Biogas can interact with H2S. Can anybody guide me to calculate the required quantities of all essential , so i may optimize the project

hi everybody here in this forum please help me finding some books or links related to green chemistry thanks so much

Hi everyone, I'm learning NMR at the moment and I understand it relatively well - but I have a problem with this spectrum here and it's been bugging me for so long. Can anyone possibly offer some explanantion to me ? The compound is 2-methylpropan-1-ol : As you can see, there are 4 "types" of proton - the 'OH' the 'CH2' the 'CH' and the two chemically equivalent 'CH3's We'd expect 4 proton resonance signals and this is the case, (see spectrum here) : http://www.sigmaaldr.../FNMR000946.PDF I understand the doublet for the CH3, the triplet for the 'CH2' and 'OH' (if OH coupling occurs) but I don't understand the clear SEPTET for the 'CH' - because …

Dear forum members I am a biologist who is trying to synthesize an organic compound. I am trying to synthesize an organic compound 5-(2-hydroxy-5-nitrophenylazo)rhodanine using a protocol stated in article "Zaijun, L. et al. (2003). Analytical and Bioanalytical Chemistry 375, 408-413." The protocol states that - Transfer 1.54 g of 4-nitro-2-aminophenol dissolved in 45 mL of 95% alcohol into a 100 mL beaker, add 12.0 mL of 6.0 mol L–1 HCI then cool the solution to 0 °C, and add 7 mL of 10% NaNO2 slowly. In another 200 mL beaker, 1.34 g of rhodanine and 14mL of 7.5 mol L–1 ammonia were added. After the solution has been cooled to 0 °C, add the above diazotized sol…

Say you had an organic compound with a relatively low melting point (say 50 degrees celcius) that was currently in a solution with a boiling point of say 100 degrees celcius. If you wanted to evaporate the liquid to obtain the solid, how would you do this? I'm confused since the BP of the solution is higher than the temperature needed for the solid to crystallize. So if you make the solution hot enough to evaporate the liquid the solid will never crystallize out. If you heat it high enough to boil off the solvent at what point do you know to stop heating and let the compound crystallize out. Could you just boil off the liquid and the residue your left with is your co…

Hello All, I am trying to determine the solubility of a 1600mcg/mL Ampicillin stock solution prepared using phosphate buffer 1 (pH 6.0) at a volume of 200mL. What is the best means to determine if the amount of drug used for the solution, approximately 0.37g is appropriate for the stock solution or if the solution is supersaturated? Any assistance is greatly appreciated. Thanks.

I really have a little difficulty on this topic 'Synthesis of Organic Compound from alkyne and alkene'. I need some help please. I would like to know about the rules on how you can get either aldehyde or carboxylic acid, ketone or what. Thank you. Next issue: Reactions of Phenols ~

Good day! I am an undergraduate student and one of my subjects is organic chemistry. It was really a challenging subject especially when we do the laboratory experiments. One experiment is testing for alcohols. We used ethanol, n-butanol,sec-butanol,tert-butanol, benzene alcohol, and methyl chloride. I tried to read discussions about these lucas test, chromic acid test, iodoform test, and methyl alcohol test but i can't fully grasp the material. Can you please help me about the solubility of the alcohols to water? How about the reactivity of the primary, secondary, and tertiary alcohols? Did my teacher get it correctly that when we dip a hot copper wire, only the oxygen i…

Hello, Since I have very little knowledge of chemistry (specifically organic chemistry), I have a couple questions for you. How would one dissolve lactose, cornstarch, talc, and magnesium stearate and spare the antidiarrhea drug we love called loperamide? If you have noticed, I'm trying to make pure loperamide. Why? Long story. Or...how could one dissolve loperamide and spare the others only for loperamide to be collected later. Now, the chemicals used in this cannot be harmful to the human body (sulfuric acid etc). So, if anyone has any ideas, I'm open for suggestions. Thank you for your help (from a newbie)!

hi i need a help in organic chemistry regarding a problem,which i googled but unable to find to find solution my problem is"i want to convert saturated fatty acids into unsaturated fatty acid and i was thinking to use alchoalic KOH but it will rahter give saponifiaction reaction, i want to know a simple and easy reaction or any regent which i can use to create unstauration (double bond in any number) in fatty acid which i can carry out in my biotechnology lab,,,since my background is biotechnology not chemistry, so i need a serious suggestion from the member of this group thank you

Hi All, I'm hoping someone could help me: I'm looking for Fieser's "Experiments in Organic Chemistry", Third Edition, published 1955, pages 41-44. I have the Second Edition, but we need the pages from the 3rd to validate our work. If anyone could email a pdf I would greatly appreciate it. (Can we email pdf files on this site? If not, I can provide an email address.) It turns out that there is also a Third Edition, Revised, published in 1957. I think I need the 1955 text, but of course am not sure, so I'd appreciate either (or both). Thanks very much for any assistance

will it be possible to extract this from black pepper using white spirit or acetone as i dont realy want to be using DCM... sorry for the spelling mistake ^^ its ment to be piperine

What are the latest rules for nomenclature of organic compounds as per the IUPAC

Hi I learned something in organic chem I didn't quite understand. Normally I understand that interaction between a Hydrogen (say from a water molecule) and a Nitrogen is a hydrogen bonding due to the high electronegativity of the nitrogen. However when interacting with the nitrogen in acetonitrile the interaction was described as dipole dipole because possibly the nitrogen is triple bonded to a carbon atom. Why is it a dipole dipole bond rather than hydrogen bonding? I realize it has to do with the triple bond. Does the fact that the Nitrogen is triple bonded lower its electronegavity? How does this work? Thanks.

Hey everyone, First off, thanks for taking a look even if it's just curiosity. I have a chemical or substance that I am trying to have identified, and I can't really seem to get much help or where to turn. I am not really good with chemistry so I was hoping for some good help on this forum. I will list pretty much everything valuable I know about the chemical, you can always msg for more details as I would be glad to discuss about it. Let's just say someone does help me solve this! It would mean a lot and I would be very happy to give some sort of reward on my own! $! At first I thought this chemical was methionine crystals, however, I was told that I am…

Hi, I am looking for 4-hydroxymandelic acid (CAS Number: 184901-84-6). I need S and R enantiomers of this compound. I found 4-hydroxymandelic acid in Sigma, but can't find S and R enantiomer. I searched with emolecules.com and chemspider, and also Zinc database, but still can't find S and R enantiomer. Can anyone find this compound? Does anyone know a chemical company that do custom synthesis ? Thanks

Potentially, Europe could be covered with efficient wind turbines. Electricity would then be redundant. We still need fuel for heavy transport, airplanes, and auxiliary power stations in case of (unlikely windless periods over a (too) large part of Europe. Hydrogene is well known in this respect. But it is by no means an efficient fuel: it either must be compressed, or cooled to turn it in its liquid phase. It would be much better to turn electricity, water and air into a hydrocarbon, or even NH3. Could one think of electrolysis, in the presence of a catalyst, to create Methylal or Ethylal from CO2 in the air, combined with water? If fuel could be created thi…

Hello friends of the organic chemistry laboratory assignments for the 2-amino-asetofenon The physical properties and molecular shape is required. already teşekküler

Anyone have a good reference work or working knowledge of what Volatile Organic Compounds can be found in the headspace of Marijuana? Thanks in advance!

I have a need to convert the following compound but I could not figure out the experimental procedure. I would appreciate for any advise. What are the reagents, conditions and steps required? 1. Acetone . 2. What else?

What is the best method by which to produce caffeine in a pure state?

Hello Before I begin, my last query was shot down as the person who replied had some concerns. Let me preface by saying I am not doing anything illegal or dangerous. I just enjoy learning diverse topics from economics to chemistry to quantum physics to cosmology. Incidentally I really have a hunch that they wont find the higgs and having just stumbled onto reich after hearing him in passing as a teenager, (from reading burroughs) his orgone energy deserves a serious look. But anyhow for another time. My question: I am wondering, of all the synths I see on line that use fixed measures. Are they optimized for these specific measures or can any and all of them be sc…

how much CaCO3 is in sea shells? when dissolved they should become basic, no?