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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Posted to sci.electronics.design,sci.electronics.equipment,sci.electronics.repair
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On Wed, 22 Jul 2009 09:13:35 -0400, Meat Plow
wrote: Isn't pure Iodine highly unstable? No. Ammonium tri-Iodide and Nitrogen Tri-Iodide are the traditional unstable contact explosive. Great fun in high skool and college blowing things up. It was also probably the origin of the term "purple haze". It's fairly easy to make and equally easy to have a spectacular accident. http://www.youtube.com/watch?v=2KlAf936E90 |
#2
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Posted to sci.electronics.design,sci.electronics.equipment,sci.electronics.repair
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On Thu, 23 Jul 2009 22:27:43 -0700, Jeff Liebermann wrote:
On Wed, 22 Jul 2009 09:13:35 -0400, Meat Plow Isn't pure Iodine highly unstable? No. Ammonium tri-Iodide and Nitrogen Tri-Iodide are the traditional unstable contact explosive. Great fun in high skool and college blowing things up. It was also probably the origin of the term "purple haze". It's fairly easy to make and equally easy to have a spectacular accident. http://www.youtube.com/watch?v=2KlAf936E90 What ever happened to fulminate of mercury? Thanks, Rich |
#3
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Posted to sci.electronics.design,sci.electronics.equipment,sci.electronics.repair
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On Fri, 24 Jul 2009 17:29:51 GMT, Rich Grise
wrote: On Thu, 23 Jul 2009 22:27:43 -0700, Jeff Liebermann wrote: On Wed, 22 Jul 2009 09:13:35 -0400, Meat Plow Isn't pure Iodine highly unstable? No. Ammonium tri-Iodide and Nitrogen Tri-Iodide are the traditional unstable contact explosive. Great fun in high skool and college blowing things up. It was also probably the origin of the term "purple haze". It's fairly easy to make and equally easy to have a spectacular accident. http://www.youtube.com/watch?v=2KlAf936E90 What ever happened to fulminate of mercury? Thanks, Rich The ingredients became a bit tougher to come by and more expensive, same for lead picrate. -- Transmitted with recycled bits. ---------- |
#4
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Posted to sci.electronics.design,sci.electronics.equipment,sci.electronics.repair
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![]() http://www.youtube.com/watch?v=2KlAf936E90 Now if it is that sensitive how would one ever get it on the paper on to the stand in the first place? PP |
#5
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Paul_P wrote:
Now if it is that sensitive how would one ever get it on the paper on to the stand in the first place? When it was wet. -- Adrian C |
#6
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On Oct 18, 5:48*pm, Adrian C wrote:
Paul_P wrote: Now if it is that sensitive how would one ever get it on the paper on to the stand in the first place? When it was wet. -- Adrian C When it's wet, the water allows the ammonia molecules to cradle the iodine molecules so they don't get close enough to react. When it dries out, or if the ammonia is allowed to escape over time, it becomes shock sensitive. At least that's what I remember from chemistry class. |
#7
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Posted to sci.electronics.design,sci.electronics.equipment,sci.electronics.repair
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On Sun, 18 Oct 2009 16:18:54 -0700 (PDT), "
wrote: On Oct 18, 5:48*pm, Adrian C wrote: Paul_P wrote: Now if it is that sensitive how would one ever get it on the paper on to the stand in the first place? When it was wet. -- Adrian C When it's wet, the water allows the ammonia molecules to cradle the iodine molecules so they don't get close enough to react. When it dries out, or if the ammonia is allowed to escape over time, it becomes shock sensitive. At least that's what I remember from chemistry class. There is no ammonia in the reaction product, just NI3 (precipitate). |
#8
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Posted to sci.electronics.design,sci.electronics.equipment,sci.electronics.repair
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On Thu, 29 Oct 2009 19:16:05 -0700,
wrote: On Sun, 18 Oct 2009 16:18:54 -0700 (PDT), " wrote: On Oct 18, 5:48*pm, Adrian C wrote: Paul_P wrote: Now if it is that sensitive how would one ever get it on the paper on to the stand in the first place? When it was wet. -- Adrian C When it's wet, the water allows the ammonia molecules to cradle the iodine molecules so they don't get close enough to react. When it dries out, or if the ammonia is allowed to escape over time, it becomes shock sensitive. At least that's what I remember from chemistry class. There is no ammonia in the reaction product, True. just NI3 (precipitate). No, that's the explosive form (Nitrogen Tri-Iodide). The reaction products are I2 and N2. |
#9
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Posted to sci.electronics.design,sci.electronics.equipment,sci.electronics.repair
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On Thu, 29 Oct 2009 19:16:05 -0700,
wrote: On Sun, 18 Oct 2009 16:18:54 -0700 (PDT), " wrote: On Oct 18, 5:48*pm, Adrian C wrote: Paul_P wrote: Now if it is that sensitive how would one ever get it on the paper on to the stand in the first place? When it was wet. -- Adrian C When it's wet, the water allows the ammonia molecules to cradle the iodine molecules so they don't get close enough to react. When it dries out, or if the ammonia is allowed to escape over time, it becomes shock sensitive. At least that's what I remember from chemistry class. There is no ammonia in the reaction product, True. just NI3 (precipitate). No, that's the explosive form (Nitrogen Tri-Iodide). The reaction products are I2 and N2. |
#10
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Posted to sci.electronics.design,sci.electronics.equipment,sci.electronics.repair
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On Sun, 18 Oct 2009 16:18:54 -0700 (PDT), "
wrote: On Oct 18, 5:48*pm, Adrian C wrote: Paul_P wrote: Now if it is that sensitive how would one ever get it on the paper on to the stand in the first place? When it was wet. -- Adrian C When it's wet, the water allows the ammonia molecules to cradle the iodine molecules so they don't get close enough to react. When it dries out, or if the ammonia is allowed to escape over time, it becomes shock sensitive. At least that's what I remember from chemistry class. There is no ammonia in the reaction product, just NI3 (precipitate). |
#11
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Posted to sci.electronics.design,sci.electronics.equipment,sci.electronics.repair
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![]() "Paul_P" REMOVE paul @ REMOVE ppinyot . REMOVEcom wrote in message ... http://www.youtube.com/watch?v=2KlAf936E90 Now if it is that sensitive how would one ever get it on the paper on to the stand in the first place? PP As a teenager I would mix two chemicals that slight pressure would cause explosion. I would put in a small corked bottle. The town I lived in the police would let us kids bring rifles to there shooting range and practice. I would set up these bottles and when bullet hit there was a loud smoke explosion. Police said what the heck did you make in those bottles. Never told them as this stuff has killed some people as they tried to mix with a mortar & pestle. I always rolled it back and fourth gently on a sheet of paper to mix. ww |
#12
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Posted to sci.electronics.design,sci.electronics.equipment,sci.electronics.repair
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On Mon, 19 Oct 2009 15:24:35 -0600, WW wrote:
"Paul_P" REMOVE paul @ REMOVE ppinyot . REMOVEcom wrote in message http://www.youtube.com/watch?v=2KlAf936E90 Now if it is that sensitive how would one ever get it on the paper on to the stand in the first place? As a teenager I would mix two chemicals that slight pressure would cause explosion. I would put in a small corked bottle. The town I lived in the police would let us kids bring rifles to there shooting range and practice. I would set up these bottles and when bullet hit there was a loud smoke explosion. Police said what the heck did you make in those bottles. Never told them as this stuff has killed some people as they tried to mix with a mortar & pestle. I always rolled it back and fourth gently on a sheet of paper to mix. ww Nitric acid and glycerine? :- Cheers! Rich |
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