Sciencemadness Discussion Board

Picric acid vs ETN

Ral123 - 7-6-2013 at 10:31

With all my superlatives of TNP, some people were left with the impression that it's a "must make explosive" and is high R.E. explosive. Well here's the prove. Think of your bet and then watch the test:
http://www.youtube.com/watch?v=luj3NdyBisA
and please if you can, click my link at the end of the video.
Share what you though would be the result. Share witch one you prefer anyways.

papaya - 7-6-2013 at 10:50

Everything is said in the comments to video ;) Btw, where do you get the parent alcohol for ETN? Also, what is the ''power'' relation between that two and EGDN?

[Edited on 7-6-2013 by papaya]

golfpro - 7-6-2013 at 11:07

How many grams ETN was that?

Ral123 - 7-6-2013 at 11:29

Wow, I've never received so many likes for such a short time. Thank you guys.
Quote: Originally posted by papaya  
Everything is said in the comments to video ;) Btw, where do you get the parent alcohol for ETN? Also, what is the ''power'' relation between that two and EGDN?

[Edited on 7-6-2013 by papaya]

Check my last EGDN test, except from reliability, EGDN isn't that much more powerful then maximum density ETN.

Quote: Originally posted by golfpro  
How many grams ETN was that?

Quantity is about 2grams, witch is more like two normal No8 caps. And a whole lot of azide, but that because of the crude hot wire setup.

[Edited on 7-6-2013 by Ral123]

papaya - 7-6-2013 at 12:23

Did you want to say that EGDN is more reliably initiated than ETN or about the longer shelf life? The channel and conducted tests are great, how do you mitigate low orders for example for EGDN - is the RDX booster / tight container a must, or are there any compositions based particularly on EGDN(dynamites?) that will normally go full speed?

Ral123 - 7-6-2013 at 12:34

EGDN is much more reliable then cast ETN. I recommend a booster for all maximum density materials, but I've set off EGDN with 0.2g azide strapped on the side of the charge. The same setup with cast ETN was very weak: http://www.youtube.com/watch?v=kdDbO3L3Y0A The large dent was EGDN.

papaya - 7-6-2013 at 12:57

Hmm, I thought that crystalline HE must be more easily initiated than liquid ones (also more sensitive), you disproved that. Then I don't see any advantage of ETN, except non-volatility, but it is compensated with the short shelf life (all secondary hydroxyl nitrates are rubbish for the same reason, I'm surprised that NG compositions are/were so widespread for industrial use). Also the source for E is not clear to me, I mean not the actual one you used, rather where usually it can be found.

Ral123 - 7-6-2013 at 21:51

Quote: Originally posted by papaya  
Hmm, I thought that crystalline HE must be more easily initiated than liquid ones (also more sensitive), you disproved that. Then I don't see any advantage of ETN, except non-volatility, but it is compensated with the short shelf life (all secondary hydroxyl nitrates are rubbish for the same reason, I'm surprised that NG compositions are/were so widespread for industrial use). Also the source for E is not clear to me, I mean not the actual one you used, rather where usually it can be found.

I proved that, look at my ETN critical diameter video. As for ETN being rubbish, at the end of the video, there's short review on that topic. One thing is sure, ETN is no doubt No1 choice for the high power plastic explosive on a budget. I also have a video on that-"ETN plastique with no inerts"
If you can't find some eritrithol product, you can try manitol or I'm not sure about this-sorbitol. NC stores kinda good and detonates almost like TNP.

[Edited on 8-6-2013 by Ral123]

Antiswat - 10-6-2013 at 05:17

Quote: Originally posted by papaya  
Btw, where do you get the parent alcohol for ETN? Also, what is the ''power'' relation between that two and EGDN?

[Edited on 7-6-2013 by papaya]


i believe you mean the sugar for the nitration, its sold as a health sugar commonly under the name ''Sukrin'' tastes pretty good too
also the brisance of ETN is estimated to be approx. 1.6 - 1.8 (being ''power'' 160-180% of TNT)
these estimations were done on the background of results i was told by a person who used some secondaries we could find the brisance on, and as it was in between it could be estimated that way, but not with accuracy at all, i believe it was a little bit less strong than EGDN (1.8??) which IIRC was used as the top brisant to compare it to

Ral123 - 10-6-2013 at 21:48

I wouldn't give 1.8 to EGDN, due to it's density and velocity.
EGDN-7300j/g, 1.48g/cm2
ETN~6500j/g, 1.6g/cm2

Antiswat - 11-6-2013 at 06:49

Quote: Originally posted by Ral123  
I wouldn't give 1.8 to EGDN, due to it's density and velocity.
EGDN-7300j/g, 1.48g/cm2
ETN~6500j/g, 1.6g/cm2


''EGDN is more powerful than nitro. Lead block 650cm3, brisance 185% TNT''
http://www.sciencemadness.org/talk/viewthread.php?tid=5057

its 1.85 but i guess this would be MAX brisance, anyways its pretty much maximum density all the time as its a liquid