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solubility of magnesium hydroxide
Magnesium hydroxide is pretty much insoluble in water (appr. 5ppm IIRC). Your problem is that the pr ...
29-12-2017 at 07:49
by: Fulmen
Vacuum distillation - can it alone break azeotrope? Simple media bottle setup for alcohols & solvents
Unionseed: Read both sources again. 825°C is for calcium carbonate, 512°C is for calcium hydroxide ...
26-12-2017 at 08:22
by: Fulmen
Gun powder/ Black powder question
Don't be too picky with your choice of wood, make sure it's something you have easy access to. Prope ...
14-12-2017 at 13:27
by: Fulmen
Arduino-controlled Differential Thermal Analysis
The relays pretty much eliminates having both heating and cooling in the same cycle. But it won't be ...
10-12-2017 at 13:44
by: Fulmen
Gentle rust removal w/o nasty residues
AFAIK molasses remove rust by chelation.
9-12-2017 at 02:37
by: Fulmen
Metal diamine salts for PSAN
Nice to hear.

Feel free to read up on what's out there, if you start digging through the researc ...
7-12-2017 at 12:26
by: Fulmen
Arduino-controlled Differential Thermal Analysis
Yes, the peltier is R1 (forgot to rename it). Q1 is controlling the relays (labeled R2 & R3), th ...
7-12-2017 at 12:17
by: Fulmen
Arduino-controlled Differential Thermal Analysis
Haven't had much time to work on this this week, but I've redesigned the driver to reduce complexity ...
7-12-2017 at 10:54
by: Fulmen
Arduino-controlled Differential Thermal Analysis
Nah, it's not a code problem per se. I have ready-made code to copy, but I hate using code I don't u ...
4-12-2017 at 18:30
by: Fulmen
Arduino-controlled Differential Thermal Analysis
While I'm pondering the power control I've started playing around with an RTD. I think it will suff ...
3-12-2017 at 12:12
by: Fulmen
Arduino-controlled Differential Thermal Analysis
You might be on to something. I chose the peliters because I had them and I wanted to extend the ran ...
3-12-2017 at 07:29
by: Fulmen
Arduino-controlled Differential Thermal Analysis
Crud, my first design is suffering from shoot-through according to the spice simulator, I don't know ...
3-12-2017 at 03:35
by: Fulmen
Arduino-controlled Differential Thermal Analysis
That's why I added the inductor. It ends up acting like a crude buck converter.
2-12-2017 at 13:27
by: Fulmen
Arduino-controlled Differential Thermal Analysis
Yes,, the H-bridge is for reversing polarity, allowing both heating and cooling.
PWM isn't optimal ...
2-12-2017 at 13:05
by: Fulmen
Arduino-controlled Differential Thermal Analysis
I know, but that will take weeks. There are ready made H-bridge boards for the Arduino as well, I mi ...
2-12-2017 at 11:50
by: Fulmen
Arduino-controlled Differential Thermal Analysis
This is the H-bridge, just need to solder it up and see if it works.
2-12-2017 at 07:59
by: Fulmen
Arduino-controlled Differential Thermal Analysis
Nice work. Yes, I'm only looking for phase transitions at this point (straight and phase stabilized ...
2-12-2017 at 06:42
by: Fulmen
Arduino-controlled Differential Thermal Analysis
I'm pondering building a DTA around an Arduino-controller, it will be my first arduino-project so it ...
2-12-2017 at 03:13
by: Fulmen
Metal diamine salts for PSAN
A DTA seems like a doable project. I'm waiting for an arduino, first project will be temperature con ...
28-11-2017 at 05:17
by: Fulmen
Metal diamine salts for PSAN
Good news everybody. It seems like CuO makes for a good stabilizer (see attached PDF). This raises t ...
26-11-2017 at 02:07
by: Fulmen
Metal diamine salts for PSAN
After thinking it through I realized that the carbonates will release exactly the same amount of wat ...
24-11-2017 at 09:01
by: Fulmen
Metal diamine salts for PSAN
Good idea. Even if it is soluble it could be possible to prepare the amine by passing ammonia throug ...
23-11-2017 at 09:42
by: Fulmen
Metal diamine salts for PSAN
It looks like Nakka might have come across something close to the holy grail of amateur propellants, ...
23-11-2017 at 07:09
by: Fulmen
When Chemistry Goes Wrong
Nedshead: Leaving some scrap steel in the solution should plate out any dissolved Cu/Ni. From the pi ...
18-11-2017 at 00:53
by: Fulmen
I heard a professor talking about accelerated tree/wood growth and I was confused
Did you google it?

https://en.wikipedia.org/wiki/Genetically_modified_tree
https://www.theguard ...
14-11-2017 at 22:46
by: Fulmen
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