Preparing for Christmas

[orvi]

I love my 5L but hate being limited to 3.5L for my reactions as that's my limit for safety. I've went bigger a few times and it gets VERY sketchy and I've foamed over, loosing 1/3 of it a few times.

Transition from 5 L beaker to reactors (proper, expensive way of executing larger reactions) or plastic barrels is always sobering It does not seem like a big deal to do say AR dissolution in cut HDPE canister, but it is very different. Once you tackle down the main problem - how to heat the contents without destruction of temperature sensitive HDPE - you practically won.

Biggest reaction I ever watched was in 220 L HDPE barrel. Foam over on this scale is something vastly different comparing to 5 L beaker. By the time you realize that you sometimes even need some sort of blower or vacuum suction tube to suck NOx-es from the space in the barrel unoccupied by liquid - because they are so dense that you can leave it open in hood for one hour and still see just brown...
And also, pouring solution with 100 ozt of gold or palladium by hand from relatively fragile 22L glass round bottom... That can result in horrible financial disaster if you somehow manage to screw up
Yeah, it is very different.

PS: Never lift HDPE vessel with hot contents always let it cool properly and after two or three dissolutions, replace it with new one. AR can do extraordinary damage, even to HDPE. Siphoning or pumping is preferred over pouring.

 

[goldshark]

It may not be the same but here is a link from Amazon.
More expensive though.

https://www.amazon.com/VEVOR-Water-Distiller-New/dp/B0D45VNQRM

The model I purchased, viewable in your link, is the CO-Z 304 stainless with glass carafe, $115. The cheaper one for $65 is Al with plastic carafe.

 

[4metals]

By the time you realize that you sometimes even need some sort of blower or vacuum suction tube to suck NOx-es from the space in the barrel

One of my memories from bucket refining is watching a reaction rise and saying to myself “big bubbles, big bubbles” as if the solution understood me! When the bubbles get big the rise slows down, it’s the small bubble foam that rises with a vengeance. When I saw that coming I was there with a suction receiver and a wand to prevent a disaster. (This is a little trick you learn the hard way!)

 

[Martijn]

22 liter is the biggest you can lift and pour by hand, the next sizes up, 50L, 72L and 100L are the ones too big to pick up and require special equipment to drain.

I use that size only for making wine.

I wish i had enough material to jusitfy using a 22L flask.