Jannis Andreska
  • Member for 7 years, 8 months
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1 answers
2 votes
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Is there any reason why halogenation of substituted alkanes wouldn't occur through free radical substitution?
1 votes

In principle, this reaction should be possible. However, the intermediately formed 2-hydroxy-2-propyl radical is not stabilized by the OH substituent, as the alternative mesomeric structure with C=OH ...

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1 answers
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Zinc Picolinate - Positive, negative or neutral charge?
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Zinc picolinate with two ligands per metal ion ($\ce{Zn(C6H4NO2)2}$) is a neutral chelate complex. Deprotonated picolinic acid has one negative charge at the carboxylate group ($\ce{NC5H4-COO^-}$). ...

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2 answers
1 votes
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What's the mechanism for the oxidation of primary alcohol to carboxylic acid with HNO3?
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The reaction starts with the formation of an organic nitric acid ester (as these compounds are dangerously unstable, as Uncle Al already pointed out, I would not recommend to use nitric acid for this ...

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2 answers
5 votes
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Coconut aldehyde mechanism
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It is the double bond that gets protonated, and a secondary carbocation is formed. The carbonyl oxygen of the carboxyl group adds to this cation, forming the five-membered ring. This reaction is ...

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1 answers
1 votes
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Completing inorganic reactions and writing spectator ions
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For B, you have correctly identified calcium phosphate as the precipitate, as it is the least soluble of all possible compounds. In the case of A, cobalt phosphate precipitates from the solution ...

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What is the correct temperature probe for a wet etch solution?
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Teflon is resistant against corrosive chemicals and stable up to temperatures of about 200 °C, so it is suitable for use in hot aqueous salt solutions. Using a coating or casing made of plastic which ...

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2 answers
1 votes
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What is/are the product when 2,2-dimethylhex-5-en-3-ol reacts with Lucas reagent?
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A shift of the methyl group is likely, because this would yield a more stable tertiary carbocation. In concentrated hydrochloric acid, the double bond can also be protonated, producing a secondary ...

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1 answers
1 votes
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Is there any way to use syringe pumpe in pumping flow
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This should be no problem when you use a syringe pump model with adjustable flow rate and sufficient volume (at least 30 ml).

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3 answers
3 votes
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Safety concerns - Heating PMMA (acrylic glass) and fluorinated polymers
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PMMA melts at 160 °C and ignites in air at 460 °C, forming CO and formaldehyde as toxic gases when burning. Since you are working with a much lower temperature, PMMA should be safe. What type of ...

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4 answers
14 votes
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Why does having equivalent resonance structures give more stability?
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You can estimate stability by the number of resonance structures you can draw. For the acetate ion, there are 2 resonance structures, while for the protonated form (acetic acid) only one structure is ...

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