Trying to figure out what the law is
Laws look clear that use of anything butane as a solvent is a no go without licenses
Unsure if it’s only applicable to butane or if ethanol is ok or not
What’s the deal with rosin , sift or bubble???
And no I don’t have med if that makes any difference
would this be 2,3,4-trimethylbutamine? We haven't really gone through amines in class so i'm a little confused. I also don't know if it should be butan- or pentan- ?
EDIT: correct answer is 3,4-dimethylpentan-2-amine.
Journal of the American Chemical SocietyDOI: 10.1021/jacs.0c04876
Novel organic lasers were fashioned from large, aggregation‐free polycyclic aromatic hydrocarbons (PAHs). Several new perylene‐based PAHs were prepared that show perylene‐like electronic properties with moderate fluorescence quantum yields. Two of them show amplified spontaneous emission, and solution‐processed distributed feedback lasers were successfully fabricated.
Perylene‐fused, aggregation‐free polycyclic aromatic hydrocarbons with partial zigzag periphery (ZY‐01 , ZY‐02 , and ZY‐03 ) were synthesized. X‐ray crystallographic analysis reveals that there is no intermolecular π–π stacking in any of the three molecules, and as a result, they show moderate‐to‐high photoluminescence quantum yield in both solution and in the solid state. They also display the characteristic absorption and emission spectra of perylene dyes. ZY‐01 and ZY‐02 with a nearly planar π‐conjugated skeleton exhibit amplified spontaneous emission (ASE) when dispersed in polystyrene thin fil... keep reading on reddit ➡
Described in this paper are the synthesis and structure of novel and edge‐functionalized zigzag hydrocarbon belts. A stepwise fjord‐stitching strategy featuring repetitive intramolecular acylation reactions of a resorcinarene derivative as the key steps afforded a biscarbonyl‐functionalized octahydrobeltarene product. Facile ketone reduction with NaBH4 and nucleophilic addition reaction with n‐butyllithium produced secondary and tertiary alcohol‐containing molecular belts, respectively. Selective oxidation reactions of biscarbonyl‐bearing octahydrobeltarene with m‐CPBA and (PhSeO)2O furnished the corresponding lactone‐ and 1,4‐quinone‐embedded molecular belts. Depending on the functional groups on the edges, the acquired belt molecules adopt different shapes such as square prism, truncated cone and elliptical cylinder.
The utilizations of omnipresent, thermodynamically stable amides and aliphatic C(sp3)–H bonds for various functionalizations are ongoing challenges in catalysis. In particular, the direct coupling between the two functional groups has not been realized. Here, we report the synergistic activation of the two challenging bonds, the amide C–N and unactivated aliphatic C(sp3)–H, via metallaphotoredox catalysis to directly acylate aliphatic C–H bond utilizing amides as stable and readily accessible acyl surrogates. N‐acylsuccinimides served as efficient acyl reagents for the streamlined synthesis of synthetically useful ketones from simple C(sp3)–H substrates. Detailed mechanistic investigations using both computational and experimental mechanistic studies were performed to construct a detailed and complete catalytic cycle. The origin of the superior reactivity of the N‐acylsuccinimides over other more reactive acyl sources such as acyl chlorides was found to be an uncommon reaction pathway... keep reading on reddit ➡
Hi all-. I have a titanium suppressor that is fouled with gunpowder residue that I want to clean in an ultrasonic cleaner. I am considering using citric acid plus some hydrogen peroxide (3%) for the solution bath. Will this etch or otherwise attack the titanium?
I am now learning about hydrocarbon on the internet, and I am searching for information about benzene, what I only know about it is that
Because there are really a lack of materials I will be grateful if anyone can teach me more properties about aromatic hydrocarbons that I should know
Yes what I know is really few lol
Gas like methane gas or triacontane which is wax like, are not used as moderator in the nuclear reactor, as they full of ideal material which are used in normal moderators.
hydrogen and carbon.
Oxidative coupling of methane (OCM) has been considered as one of the most promising and attractive catalytic technology to upgrade methane. However, C 2 products (C 2 H 6 /C 2 H 4 ) from conventional methane conversion have not yielded commercially due to the competition from overoxidation and carbon accumulation at high temperatures. Herein, we reported the co‐deposition of Pt nanoparticles and CuO x clusters on TiO 2 (PC‐50), and then used the photocatalyst to demonstrate the first successful case of photocatalytic OCM in a flow reactor operated at room temperature and under atmospheric pressure. The optimized Cu 0.1 Pt 0.5 /PC‐50 sample showed a highest yield of C 2 product of 6.8 µmol h ‐1 , at the space velocity of 2400 h ‐1 , two times higher than the sum of the activity of Pt/PC‐50 (1.07 µmol h ‐1 ) and Cu/PC‐50 (1.9 µmol h ‐1 ), and it might also be the highest among photocatalytic methane conversions reported so far under atmospheric pressure. A high selectivity of 60% to C 2... keep reading on reddit ➡
If I am running bubble for squishing, can I use my post wash material in a hydrocarbon extraction to max out the returns on my material? Or is the best thing to just soak it for edibles? Any recommendations on what to do with my post wash would be much appreciated. Thanks!
The power of F : A high‐valent nickel–fluoride complex oxidizes hydrocarbons via a hydrogen atom transfer mechanism while also facilitating oxidative fluorination. The fluoride complex demonstrates a 103‐fold enhanced rate constant for hydrocarbon oxidation when compared to its chloride analogue, demonstrating that fluoride imbues a high driving force for oxidation.
In the search for highly reactive oxidants we have identified high‐valent metal–fluorides as a potential potent oxidant. The high‐valent Ni–F complex [NiIII(F)(L)] (2 , L=N ,N′ ‐(2,6‐dimethylphenyl)‐2,6‐pyridinedicarboxamidate) was prepared from [NiII(F)(L)]− (1 ) by oxidation with selectfluor. Complexes 1 and 2 were characterized by using 1H/19F NMR, UV‐vis, and EPR spectroscopies, mass spectrometry, and X‐ray crystallography. Complex 2 was found to be a highly reactive oxidant in the oxidation of hydrocarbons. Kinetic data and products analysis demonstrate a hydrogen atom transfer mechanism of oxid... keep reading on reddit ➡
Honestly anything not put-in-car related with gasoline is a big redflag for my brain but im too baked to think about what could go wrong.
My form of Tech Support is aircraft maintenance, working on fixed-wing aeroplanes and helicopters with a value ranging from mid-five-figures to mid-eight-figures. They usually can be divided into airborne aluminium pit-ponies or their owners’ pride-and-joy; even a business jet worth more than ten million dollars can be treated as a workhorse, while a 45-year-old 40-thousand-dollar bugsmasher may be pampered by its owner.
This is a story from my recent days in aircraft maintenance - today in fact.
Many aircraft owners place their aeroplanes ‘on line’ with a commercial operator; bugsmashers are placed with flight training schools, while more sophisticated aircraft are hired out to air charter companies. The owner gets tax deductions from pouring money into the money pit and the operator gets an aircraft without having to buy it. The aircraft I’ve been working on today is one such, valued in the seven-figure price range; it’s been... keep reading on reddit ➡
We have a drycleaners in California and we’re needing to replace our Perc machine. We’ve settled on a new 60lb hydrocarbon machine. Can anyone tell me the difference between the hydrocarbon with filters vs. the same machine but with cooling tower? The cooling tower is much more expensive and naturally the sales rep is pushing that. Just want to make sure we make the right choice and see what the actual difference are.
Also, if anyone knows where we can find a good priced slightly used 60lb hydrocarbon machine, please contact me.
Edit: my chemistry friends challenged me with a couple of hydrocarbons and I managed to figure out what's wrong with their names except for this one
Edit 2: I also can't seem to crack the real name of 1,6-dimethylheptane
Edit 3: nvm figured it out
Tapinarof acts through AhR to reduce inflammation in IMQ-treated mice. AhR-sufficient mice on a C57Bl/6 background exhibit a reduced clinical score after treatment with Tapinarof or 6-formylindolo(3,2-b)carbazole (FICZ). In contrast, AhR KO mice do not respond to the anti-inflammatory effects of Tapinarof. FICZ is used as a comparator in these studies and yields similar results, with dramatically reduced inflammatory responses in wild-type, but not AhR KO mice.
I'm doing some rocket performance modeling, and I'd like to model commonly available hydrocarbon fuels a little more accurately than just using octane for gasoline. I know auto gasoline varies quite a bit, but some of them, like jet A should have fairly reliable compositions. Where might I find this?
Jet A (And any other jet fuels, specifically JP-4)
RP-1 - I saw in one paper that 97.5% dodecane, 2.5% hexane (molar) is a good approximation.
Macrocycles In their Communication on https://doi.org/10.1002/anie.202002827page 7700, M.‐X. Wang et al. present beltarenes as a novel type of hydrocarbon nanobelt, which were synthesized by intramolecular alkylation reactions of substituted resorcinarene derivatives.
Perylene‐fused, aggregation‐free polycyclic aromatic hydrocarbons with partial zigzag periphery (ZY‐01, ZY‐02, and ZY‐03) were synthesized. X‐ray crystallographic analysis reveals that there is no intermolecular π‐π stacking in all three molecules, and as a result, they show moderate‐to‐high photoluminescence quantum yield in both solution and solid state. They also display characteristic absorption and emission spectra of perylene dyes. ZY‐01 and ZY‐02 with a nearly planar π‐conjugated skeleton exhibit amplified spontaneous emission (ASE) when dispersed in polystyrene thin films. All solution‐processed distributed feedback lasers have been fabricated using ZY‐01 and ZY‐02 as active gain materials, both showing narrow emission linewidth (
In the search for highly reactive oxidants we have identified high‐valent metal‐fluorides as a potential potent oxidant. The high‐valent Ni–F complex [NiIII(F)(L)] (2, L = N,N’‐(2,6‐dimethylphenyl)‐2,6‐pyridinedicarboxamidate) was prepared from [NiII(F)(L)]– (1) by oxidation with selectfluor. 1 and 2 were characterized using 1H/19F NMR, UV‐vis, and EPR spectroscopies, mass spectrometry, and X‐ray crystallography. 2 was found to be a highly reactive oxidant in the oxidation of hydrocarbons. Kinetic data and products analysis demonstrate a hydrogen atom transfer mechanism of oxidation. The rate constant determined for the oxidation of 9,10‐dihydroanthracene (k2 = 29 M‐1s‐1) compared favourably with the most reactive high‐valent metallo‐oxidants. 2 displayed reactions rates 2000‐4500‐fold enhanced with respect to [NiIII(Cl)(L)]. 2 also displayed high kinetic isotope effect values. Oxidative hydrocarbon and phosphine fluorination was achieved. Our results provide an interesting direction i... keep reading on reddit ➡