Secondly, for the LWR, how would a 1000 ml flask fail where a 250 ml flask would not?
More area for condensation, effectively taking some water and HI ~out of the reaction area. (Mind that with an RBF, from the bottom-up, the diameter first increases and then decreases. The latter of which is the only trend that promotes "reflux" of the contents back down.) Compensation would be prudent, but I doubt a reaction would totally "fail" otherwise.
Wouldn't an Erlenmeyer flask be ideal for a LWR?
Flask
The flask used is often a flat bottom with a rubberized stopper, florence , erlenmeyer, or a vacuum flask.
The flask can be almost any glass device such as a bottle, champagne bottles are preferred because the can handle the pressure. Buy flasks and stoppers at a Home beer and wine brewing supplier. Coke bottles can be fit with a single large diameter hose leading outside for small batches
Sizes
Flask Size ( ml) Safest Maximum
Weight of Ephedrine( gm) Range of E weights (gm) high will tend to blow out the top
250 7.5 1 - 10
500 15 7 - 22
1000 30 15 - 50
2000 60 30 - 90
4000 120 60- 150
1 oz of ephedrine / 1000 ml of flask
The larger the flask the more important it is to heat it evenly, A new large flask will break on a hot plate that is too small.
In one week I broke a 12 liter and a 6 liter flask because I used heat to get difficult reactants to fire up. Better would have been to increase the iodine and RP.
If you have a poor quality reactant it is best to increase the amount of the poor reactant a little, and to increase the amount of the good reactant a lot. It does not help to add a lot of a shitty reactant
LWR require less space for groth as the above sugestions.
Nano reactions work well with a condencer with a restricted entrance. For a visual, picture a glass dropper fitted into the top of a dram. The small conical opening acts as a precondencer, yet still allows flow for gasses and pressure changes. Usually there will be some fluid collected that bubbles, further adding to the eficiency. 8)
Nano reactions work well with a condencer with a restricted entrance. For a visual, picture a glass dropper fitted into the top of a dram. The small conical opening acts as a precondencer, yet still allows flow for gasses and pressure changes. Usually there will be some fluid collected that bubbles, further adding to the eficiency.
Great idea!
You do mean with the dropper in this orientation right? (..essentially a dropper bottle with a shortened dropper..)
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000511375-nano_idea.jpg)
Easy, efficient, OTC, etc.
Awesome.