The first problem we tried was analyzing the mass spec of diethyl ether and we are unable to explain why there is a peak at 31. Which would indicate a CH2-OH fragment? But I'm not sure how that would happen. Is this the McLafferty fragmentation? Logged ...
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When preparing N-benzyl phthalimide (Ⅲ), the post-treatment in the literature is to cool the reaction solution in an ice bath, pour it into water, extract it with diethyl ether, concentrate it and then recrystallize it with n-hexane to obtain the product. In the experiment, the author di...
How+to+grow+single-crystals如何长单晶 HowtoGrowSingle-Crystals YangLi What’sSingleCrystal?•所谓单晶(monocrystal,monocrystalline,singlecrystal)，即结晶体内部的微粒在三维空间呈有规律地、周期性地排列，或者说晶体的整体在三维方向上由同一空间格子构成，整个晶体中质点在空间的排列为长程有序。•单晶整个晶格...
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this amine, because it's really volatil. I have tried to add picric acid, or oxalic acid, but nothing precipitate. Then I added a solution of HCl in diethylether, and I don't have any precipitate of chlorhydrate, just some fumes over the ether, which seems to be my amine chlor...
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The normal boiling point of liquid diethyl ether is 308 K. Assuming that its molar heat of vaporization is constant at 27.3 kJ/mol, what is the boiling point of C2H5OC2H5 (diethyl ether) when the external pressure is 1.23 atm? The boiling point...
It is important to make all connections (see example on opposite page), and to discharge oneself before opening any container. This can be done by touching the ground or bond wire first before opening any container. Spill Control Whenever transferring l...