G.Patton
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Hello, do you mean Claisen adapter?Distillation adapter
What concentration of the acid have you used? Why have you added so much acid? 100 - 150 ml is 3.5 - 5.2 fold excess.Pour 100 - 150 ml of Phosphoric acid
Why don't you added the acid into glycidate aqueous solution and did in vice versa? I guess, It takes a lot of time.
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Hello, do you mean Claisen adapter?
What concentration of the acid have you used? Why have you added so much acid? 100 - 150 ml is 3.5 - 5.2 fold excess.
Why don't you added the acid into glycidate aqueous solution and did in vice versa? I guess, It takes a lot of time.
I used 100 ml for 50 gr batch, excess acid is to prevent the formation of layers in the flask and to make the reaction go on immediately, this minimizes the formation of byproducts. The amount of acid can still be optimized to make it economical. When I had less acid, I could see the brown glycidate layer in the flask. I forgot to mention the pH of p2p in the receiving flask was 5.5 - 6.
The process takes about 1 hour to complete.
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w2x3f5I ask because hardly imagine large scale of dripping the reaction solution to acid. It would take a lot of time. I guess, you have to use couple drip funnels or something different.
G.PattonIf the scale is large, then there is no problem to drip with a peristaltic pump (or any other suitable pump), all depending on the heating power and the heat capacity of the acid.
G.Patton
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it does not change the reaction path, but the rate of the reaction
I ask because hardly imagine large scale of dripping the reaction solution to acid. It would take a lot of time. I guess, you have to use couple drip funnels or something different.