Talk:Flash powder

message: The current defnition. as posted, containts factual inaccuracies,
some of them dangerous.  Notably A Lot Less than '4 ounces' of flash
will 'explode' removing fingers, etc.
The '4 ounces equals 1 stick' is a common myth, and just that: Myth.  Hoy Hoy!
:It's gone now. Thanx 68.39.174.150 21:01, 28 Apr 2005 (UTC)

message: I axed alot of this page because I didn't think Wikipedia was the appropriate place for explosives making instructions. If I'm in error here someone can revert or better yet rewrite the instructions and stick them on Wikibooks. Thanx 68.39.174.150 21:05, 25 Apr 2005 (UTC)
replies: text: OK, I added ths list of ingredients back with no details on use. I know nothing of fireworks terminology so if I try and write something (From the previous revision) I know it'll be vauge or blatantly newbieish. BTW, do you think there should be some warning about the dangers of it, or is it fine without one? Thanx again 68.39.174.150 21:01, 28 Apr 2005 (UTC)
replies: text: I'm adding the basic (perchlorate and aluminum) equation. I'll show the work so it's not a mystery where it came from. I agree, a cut-and-paste from totse is NOT a good idea. It probably wasn't copyvio, cause every file on totse has a little disclaimer that says something like "to the best of our knowledge this text is freely available for replication and use" or something. --AK7 20:33, 23 November 2005 (UTC)
thread_title:  Huge removal 

message: I added the section on flash powder exploding without being contained.  I think it is important for people to know about this hidden danger.  We'd assume flash powder users already know this but it is worth mentioning.  —Preceding unsigned comment added by 68.184.238.142 (talk) 13:59, 11 October 2008 (UTC)
thread_title:  What causes report? 

message: I agree that wikipedia is not the place for instructions on how to make explosive compositions. However, i think it should give or at least mention, the less common compositions, for example, barium nitrate with alluminium. Thankyou for reading my suggestion. Also the use of "be warned" in paragraph eight, is somewhat assuming the reader is considering preparation of the composition, which is not appropriate.
I did some research and found several compositions for photographic flash powders. I've added them to the compositions section. Norm Reitzel (talk) 16:21, 16 June 2009 (UTC)
thread_title:  More compositions 

message: There are seemingly conflicting pieces of information in the opening paragraphs. Since all reaction products are solid, we should either clarify or remove the statement about the aero-space industry using similar substances in gas generators.
We can only assume either that the flash-powder like mixtures are used indirectly or as an intermediary in gas production, or that these "flash powder like mixtures" are not actually similar to flash-powder at all.
CarolinaSawDust 16:15, 7 June 2007 (UTC)
thread_title:  No gaseous products 

message: Flash powders "go off" by deflagration, not detonation.  The difference relates to the speed of the reaction within the substance itself.   Detonations occur when the reaction front moves through the detonating substance faster than the speed of sound in that substance.  A detonation wave is produced, and these shock waves can be focused by a variety of methods.  The prima facia evidence of detonation waves is the existance of the Munroe Effect.  Deflagrating mixtures, sometimes (and erroneously) called "low explosives" burn at high speed, sometimes faster than the speed of sound in the atmosphere.  They do not produce detonation waves, and they do not exhibit the Munroe effect.  "Self Containment" refers to combustion of a mixture faster than the speed of sound in the gaseous reaction products (see above).  They will produce a shock front in the gas formed during the deflagration.  This is responsible for the report when burned, whether the material is confined or not.  Slower deflagrating mixtures require some form of confinement to build up gas pressure to produce a report when the conrinement ruptures.
How much of this that might want to end up in the article itself, I do not know.  Any guidance would be appreciated.
Norm Reitzel (talk) 21:16, 9 June 2009 (UTC)
thread_title:  Explosives by Scientific Definition 

message: The photo labeled; "Note the shared oxidizer (A) powder for some types of fuels (B)." is too fuzzy to read.   ...Meaningless bottles of unknown stuff. No higher resolution available.  — Preceding unsigned comment added by 69.110.90.93 (talk) 21:36, 24 May 2012 (UTC)
thread_title:  Fuzzy Photo seems meanigless.