dave321
Harmless
Posts: 45
Registered: 22-11-2012
Member Is Offline
Mood: No Mood
|
|
lead styphnate synth failure
what is the likely failure points in this reaction
produces what looks like styphnic acid, very pale yellow ppt.
above reacts with mag carbonate suspended in water to give clear solution, dil nitric acid added, followed by lead acetate solution at ~70c.
this produces a pale yellow ppt. which is a flammable solid, not explosive.
any ideas anyone?
dave321
|
|
|
badabooom
Harmless
Posts: 24
Registered: 10-8-2012
Location: running around the nucleus
Member Is Offline
Mood: bangin
|
|
Hi there,
Have a look at my thread. http://www.sciencemadness.org/talk/viewthread.php?tid=21124
I would suggest you use Lead Nitrate rather than Lead Acetate.
I hope his helps.
|
|
|
caterpillar
Hazard to Others
Posts: 472
Registered: 8-1-2012
Member Is Offline
Mood: No Mood
|
|
I can give you the link to russian book on primaries: http://pirochem.net/index.php?id1=3&category=chemvvisost... . Here author recommends to use lead nitrate, not acetate. But most likely problem
was caused by what you think is styphnic acid. Try its MP at least. I made this compound, but finally converted it to ammonium salt and blew up, using
TATP as detonator
Women are more perilous sometimes, than any hi explosive.
|
|
|
Microtek
National Hazard
Posts: 827
Registered: 23-9-2002
Member Is Offline
Mood: No Mood
|
|
"Very pale yellow" doesn't sound like styphnic acid (mine was dark orange, almost reddish) and my Mg-styphnate soln was a deep red, very strong
colour. I also used lead nitrate for the precipitation of Pb-styphnate.
|
|
|
Rosco Bodine
Banned
Posts: 6370
Registered: 29-9-2004
Member Is Offline
Mood: analytical
|
|
Pure styphnic acid is extremely pale yellow even lighter than picric acid, and a yellow about like the color of a legal pad is as dark as it will be
if it is pure.
See a picture at the following link
http://www.sciencemadness.org/talk/viewthread.php?tid=4457&a... pictoral of synthesis by pdb
http://www.sciencemadness.org/talk/viewthread.php?tid=4457&a... synthesis described by Rosco
[Edited on 10-1-2013 by Rosco Bodine]
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
