Nagai method ratios

rotovap5002

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Does anyone one know the best ratios for the Nagai method?
On here people claim its 1:2:2 but more experienced cooks claim its 1:1:1.
Anyone who tried this can chime in?
 

hacke8

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rotovap5002

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Yes i read that, but people claim the ratios are wrong on those
 

hacke8

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No, they are correct. I have completed the experiment with both methods.
 
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hacke8

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The maximum scale does not exceed 200 grams, otherwise the reaction is difficult to control. Unless you have a larger pressure reaction vessel.
 

rotovap5002

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I know the red phosphorus one is but even the nagai route if you add the acid in intervals?
 

Consider

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1:1:1 ratio is what I use, although it's violent be careful of explosion and poisonous gas release, phosphine gas
 
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