Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Put the boom in your photo's
The WiZard is In
International Hazard
*****




Posts: 1617
Registered: 3-4-2010
Member Is Offline

Mood: No Mood

[*] posted on 22-12-2010 at 13:18
Put the boom in your photo's


Silver acetylide emulsion.

http://tinyurl.com/26gvmyp
View user's profile View All Posts By User
psychokinetic
National Hazard
****




Posts: 558
Registered: 30-8-2009
Location: Nouveau Sheepelande.
Member Is Offline

Mood: Constantly missing equilibrium

[*] posted on 22-12-2010 at 14:04


In my photo's what?



“If Edison had a needle to find in a haystack, he would proceed at once with the diligence of the bee to examine straw after straw until he found the object of his search.
I was a sorry witness of such doings, knowing that a little theory and calculation would have saved him ninety per cent of his labor.”
-Tesla
View user's profile View All Posts By User
The WiZard is In
International Hazard
*****




Posts: 1617
Registered: 3-4-2010
Member Is Offline

Mood: No Mood

[*] posted on 22-12-2010 at 14:49


Quote: Originally posted by psychokinetic  
In my photo's what?


Prints/negatives.
View user's profile View All Posts By User
gnitseretni
Hazard to Others
***




Posts: 282
Registered: 5-1-2007
Location: Colombia
Member Is Offline

Mood: No Mood

[*] posted on 22-12-2010 at 14:57


I was expecting pictures of HE's detonating :P
View user's profile View All Posts By User
Ozone
International Hazard
*****




Posts: 1269
Registered: 28-7-2005
Location: Good Olde USA
Member Is Offline

Mood: Integrated

[*] posted on 22-12-2010 at 15:31


He references the potential for using silver acetylide rather than conventional AgCl, suspended in gelatin ("emulsion"), for photographic purposes. The reference cites that gelatinized Ag acetylide darkened 10 x faster.





-Anyone who never made a mistake never tried anything new.
--Albert Einstein
View user's profile View All Posts By User
The WiZard is In
International Hazard
*****




Posts: 1617
Registered: 3-4-2010
Member Is Offline

Mood: No Mood

[*] posted on 22-12-2010 at 17:35


Quote: Originally posted by psychokinetic  
In my photo's what?



Sorry I assumed that it was common knowledge that silver
acetylide is a light sensitive explosive.

CF US Patent 3 739 614 Table on page. 20.

Better

Bowden and Yoffe
Fast Reactions in Solids
Academic Press 1958

Chapter VI Initiation of Explosion by Light
P.89 Table XXI The ignition of endothermic compounds by
light flashes: minimum energy required for explosion

Has been put upon my things to scan-it/post-it list. (The table
not the chapter.)


Google.com/books
http://tinyurl.com/2vo8eh7

Explosive Effects and Applications - Page 169
Jonas A. Zukas, William Walters, William P. Walters - 2002 - 431 pages -

Preview
A number of metal carbides exist which are explosive in their own
right; most are termed acetylides rather than carbides.
Copper acetylide and silver acetylide are most commonly
prepared by teenagers.
Being primary explosives ...

Forsooth!Text

View user's profile View All Posts By User
psychokinetic
National Hazard
****




Posts: 558
Registered: 30-8-2009
Location: Nouveau Sheepelande.
Member Is Offline

Mood: Constantly missing equilibrium

[*] posted on 22-12-2010 at 18:44


I knew that bit, I was confused by the grammar of the title. I blame me on this one, as I wasn't completely awake when I read it :)



“If Edison had a needle to find in a haystack, he would proceed at once with the diligence of the bee to examine straw after straw until he found the object of his search.
I was a sorry witness of such doings, knowing that a little theory and calculation would have saved him ninety per cent of his labor.”
-Tesla
View user's profile View All Posts By User
The WiZard is In
International Hazard
*****




Posts: 1617
Registered: 3-4-2010
Member Is Offline

Mood: No Mood

[*] posted on 22-12-2010 at 20:16


Quote: Originally posted by psychokinetic  
I knew that bit, I was confused by the grammar of the title. I blame me on this one, as I wasn't completely awake when I read it :)


Apparently the Rusk's took it seriously!

Accession Number:
ADA004924

Full Text (pdf) Availability:
Size: 0 KB
Handle / proxy Url: No Full Text PDF Available

Citation Status:
A - Active

Title:
Silver Acetylide Photographic Emulsions in Various Media,

Fields and Groups :
070400 - Physical Chemistry
140500 - Printing and Graphic Arts

Corporate Author:
ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA

Personal Author(s):
Stashonok, V D
Skurko, M E

Report Date:
10 Mar 1974

Media Count:
9 Pages(s)

Organization Type:
A - ARMY
Report Number(s):

FSTC-HT-23-1360-73 (FSTCHT23136073)

Identifiers:
Silver acetylides

Abstract:
Ag2C2 emulsions in gelatin, polyvinyl alcohol, and collodion were studied to determine the effect of the degree of saturation with acetylene. For all three types, photosensitivity, fog, and contrast were plotted as functions of development time. The gelatin and polyvinyl alcohol emulsions were generally similar, while the collodion emulsions had the highest photosensitivities and developed fastest.


Document Location:
1 - DTIC AND NTIS = $$

Geopolitical Code:
5107

Supplementary Notes:
Trans. of Akademiya Navuk BSSR, Minsk. Doklady, v13 n4 p337-339 1969.

Annotation:
Silver Acetylide Photographic Emulsions in Various Media--Translation.

Citation Updated:
30 Jan 2002


View user's profile View All Posts By User
a_bab
Hazard to Others
***




Posts: 458
Registered: 15-9-2002
Member Is Offline

Mood: Angry !!!!!111111...2?!

[*] posted on 2-1-2011 at 08:34


Wiz,

do you have ANY data concerning the use of azides in photo emulsions? That would be really helpful for me.
View user's profile View All Posts By User

  Go To Top