How it Works
Excessive heat causes atoms to move more rapidly, disturbing the magnetic domains. As the atoms are sped up, the percentage of magnetic domains spinning in the same direction decreases. This lack of cohesion weakens the magnetic force and eventually demagnetizes it entirely.
In contrast, when a magnet is exposed to extreme cold, the atoms slow down so the magnetic domains are aligned and, in turn, strengthened.
Ferromagnetism
The way in which specific materials form permanent magnets or interact strongly with magnets. Most everyday magnets are a product of ferromagnetism.
Paramagnetism
A type of magnetism that occurs only in the presence of an external magnetic field. They are attracted to magnetic fields, but they are not magnetized when the external field is removed. That’s because the atoms spin in random directions; the spins aren’t aligned, and the total magnetization is zero.
Aluminum and oxygen are two examples of materials that are paramagnetic at room temperature.
Curie Temperature
Named for the French physicist Pierre Curie, the Curie Temperature is the temperature at which no magnetic domain can exist because the atoms are too frantic to maintain aligned spins. At this temperature, the ferromagnetic material becomes paramagnetic. Even if you cool the magnet, once it has become demagnetized, it will not become magnetized again. Different magnetic materials have different Curie Temperatures, but the average is about 600 to 800 degrees Celsius.
If your setup is empty and you can only reach 10 tor you either have a vacuum leak or somethings up with your pump. What model is it? Have you helium leak tested your setup?
Read my chart wrong. 10 Torr is 10 thousand microns. The boiling point of THC cannot really be practically reached in vacuum distillation this way that I know of. The breakdown of your other components would be too much.
The only problem with the wells are getting smashed by a stir bar that decoupled, overshoot, and lack of total immersion. You can’t distill anymore once the puddle is smaller than the probe can reach. These are the reasons I control the mantle with a direct temp reading from the heating element. Imagine sitting on a phone book on a red hot stove. You don’t know it’s hot till the book is on fire! That’s what your probe experences.
I have one of those but I do not distill that way. I was only posting up the IG post because it happened to jump up as a post on IG after @Soxhlet mentioned their use. The IG page posted is a supplier that might be able to help you.
However, as nice as these are you should be able to pull a vacuum down to below 10 Torr (10,000 microns) without anything else in terms of hardware. O rings can and do leak but I have a horizontal rig that I can use a thermometer in with an o ring adapter and it works down to ¾ of one micron.
I had a bear of a time after getting my used Edwards 28 vacuum pump pulling down to any kind of reasonable vacuum. It was not one thing but rather a whole bunch of little things. Ultimately the way I solved it was to take EVERYTHING including the foreline trap off the inlet to the pump and placing my portable vac gauge (an HVAC gauge) right on the pump inlet with only a KF 25 barb fitting.
Once that pulled down to ¾ of a micron, then I added the next item. I immediately discovered my $525 forleline trap full of fresh alumina was leaking down pressure when installed. I took it off and kept going piece by piece until I could finally pull a vacuum down to ¾ of one micron with the entire system assembled. No problems since. This might be an option since you are just gearing up too.
Forget vacuum leaks, just wait until you get a propane leak or an ethanol spill and blow up yourself and burn your employee’s corpse to a crisp. Fucking GROSS.
I’m not sure if my regulator is reading right, I hooked up an analog gauge to read in mmHG and it says i am pulling just under -30, but I have a stronger vacuum pump I am going to hook up and do a dry pressure test and see if I can get better vac. Maybe more grease and ptfe tape until I get some good glass. I will keep you posted, and thanks to all.
I am just new is all