Everyone I have talked to (even some at the E&W) have had problems with this peroxide, mainly cruddy yields. But it all comes down to lazy procedure, and bad execution.

I followed megas synth exactly and got what I wanted. Most ppl leave out the bit where you stirr for 3 hours at 0, then let stand at room temprature for 2 hours. That makes ALL the difference. Here is the proof:


I used my trusty lego stirrer:


The beaker was in a pot full of salt/ice, and the long arm of the stirrer reached over and the rod stirred the mix for 3 hours. Worked like a dream.

EDIT: After the two hours at room temprature, I picked up the beaker (top pic) and it felt kinda warm. The reaction must of heated it up a little.

[This message has been edited by Rat_Bastard (edited 02-01-2003).]

Where did you get the stirrer and how much did it cost?

He just said that he made it out of lego! I use K'nex.

I use a mag stirrer, but the time I made HMTD I just stirred for thirty minutes and left it in the fridge overnight. Next morning I got the same yield as mega's synth.

I am a legoaholic from way back to and I give you kudos for the stirrer.

quote:

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Originally posted by tryptamine:
I use a mag stirrer, but the time I made HMTD I just stirred for thirty minutes and left it in the fridge overnight. Next morning I got the same yield as mega's synth.

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Meh, it could aso be the fact thet they use a different catalyst rather than citric acid.

Sometimes citric acid is easy as hell to get, and for some people it's impossible.

Yeah, im glad I kept my good old lego.

Hehe, lego stirrer. Nice ingenuity!

After washing with bicarb solution, lots of water, isopropyl, and dried, the final yield was 9.6 grams. MUCH better than my old attempts- a cruddy .5 -1 grams max.



P.S: this is about enough to fill a film canister (unpressed).

[This message has been edited by Rat_Bastard (edited 02-01-2003).]

I was never cool enough to have any legos with motors in them...

However, I do have 420mL of MEKP!

Hoping to use it this weekend.

My attempts of hmtd were odd. I put everything togther and after a day noting....i got kinda uninterested and forgot...a week later i looked again and the untire thing was full however the crystals were big about 3mm long..

i dont like hmtd for the fact its light sensitive

quote:

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Originally posted by EP:
I was never cool enough to have any legos with motors in them...

However, I do have 420mL of MEKP!

Hoping to use it this weekend.

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God damn thats a lot! What did you do, quadrupled the synth?

That is one of the things I havent gotten around to making; I have all the materials, but keep on forgeting.

Which method did you use?

[This message has been edited by Rat_Bastard (edited 02-01-2003).]

I havent made HMTD since my accident with it,I get jumpy if make AP or something

[This message has been edited by Daithai (edited 02-01-2003).]

I used the synth I found on madscience: http://www.sciencemadness.org/talk/viewthread.php?tid=20

It doesn't get you much, so I did four trippled batches then four more along with a batch six times as large. And now I'm out of MEK...

BREAKING NEW: Space Shuttle burns up on landing: http://news.bbc.co.uk/2/hi/americas/2716369.stm

Yeah, that is alot of MEKP. I'm watching the breaking news about the space shuttle on television right now... I wonder what the danerous fumes are consisted of.

are you going to film the 420ml of MEKP going off EP?

thats kind of sad

quote:

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Originally posted by a1b2c3:
Yeah, that is alot of MEKP. I'm watching the breaking news about the space shuttle on television right now... I wonder what the danerous fumes are consisted of.

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The dangerous propellant they keep talking about is probably the hypergolic, 2 part propellant they use in the thrusters. When the 2 parts meet each other, they ignite. One of the parts is hydrazine, one is something else. Oh well, there's another thread for that.

As for HMTD, I can't get citric acid or hexamine anymore, so I'm screwed.

The fuel for fast-response rockets is kept separate as they ignite immediately upon mixing; the two components are methylhydrazine and dinitrogen tetraoxide.

I seriously doubt that there is no more of the hadrazine left. Its flash point is so low, it probably disintergrated before it came even a mile from the ground.