Home Laboratory: DIY Hot Plate Stirrer

[41Dxflatline]

Here's the garbage I was talking about the other day. Vevor sells a variation of these

 

[workworkwork]

Here's the garbage I was talking about the other day. Vevor sells a variation of these

41DxflatlineMy Vevor magnetic stirrer 5L 500w, stopped working in the first day of use. I did a bath sand to heat water as a test and it stopped working in minutes. I searched in google what the problem could be and found is always necessary it have a liquid to work as a heatsink for the hotplate, so i cannot make bath sands.
Because the hotplate was broken, I opened it and found it worked if I disconnect the internal temperature probe screwed in the ceramic hotplate. Now I have it working again! Without temperature control from the hotplate but it has an external temperature probe.

 

[SkylineSalesCannaboids]

My Vevor magnetic stirrer 5L 500w, stopped working in the first day of use. I did a bath sand to heat water as a test and it stopped working in minutes. I searched in google what the problem could be and found is always necessary it have a liquid to work as a heatsink for the hotplate, so i cannot make bath sands.
Because the hotplate was broken, I opened it and found it worked if I disconnect the internal temperature probe screwed in the ceramic hotplate. Now I have it working again! Without temperature control from the hotplate but it has an external temperature probe.

workworkworkMy vevor heating went out after 5 uses

 

[cake]

Building a DIY hot/cold bath with stirring this weekend...

Posting here so I remember to reply with results.

 

[HerrHaber]

Building a DIY hot/cold bath with stirring this weekend...

Posting here so I remember to reply with results.

cakeDo you intend to use peltier cooling/heating? It’s funny that you can put ultrasound to it as well as magnetic stirring and an extra resistor for efficient heating. If you use aluminum or no magnetic vessel (for the stirrer).

 

[cake]

Do you intend to use peltier cooling/heating? It’s funny that you can put ultrasound to it as well as magnetic stirring and an extra resistor for efficient heating. If you use aluminum or no magnetic vessel (for the stirrer).

HerrHaberThermolysis recirculating chiller/heater + 12qt bucket + 2 ball valves = cold/hot bath ¯\_(ツ)_/¯

I'm using an overhead stirrer.

Make sure you have plenty of necks on your flask and some claisens around because you'll think of shit you want to add later.

I'll post a thread next Monday called "The DIY $1,000 5L Reactor" documenting my build.

 

[cake]

Do you intend to use peltier cooling/heating? It’s funny that you can put ultrasound to it as well as magnetic stirring and an extra resistor for efficient heating. If you use aluminum or no magnetic vessel (for the stirrer).

HerrHaberIf I didn't need my reaction to be -30C I could have gotten a $150 heater instead of a $800 chiller and it would've been much cheaper.

 

[HerrHaber]

Thermolysis recirculating chiller/heater + 12qt bucket + 2 ball valves = cold/hot bath ¯\_(ツ)_/¯

I'm using an overhead stirrer.

Make sure you have plenty of necks on your flask and some claisens around because you'll think of shit you want to add later.

I'll post a thread next Monday called "The DIY $1,000 5L Reactor" documenting my build.

cakeI had something much smaller in mind when I first thought of this... not minute but capable of parallel synthesis like for development/optimization. You meant prep batch not to say pilot to a 5L scale batch reactor. I think this scale most productive for many of my past and future preparations, only when the method is self validated and largely optimized.

 

[Frit Buchner]

I modified one. Made a post about it. It was NOT UL approved. No, not at all