Mercury -azide

Mercury Azide. See under Azides (Mercuric and Mercurous)... 

Mercury, tris( 1,10-phenanthroline)-structure, 1, 64 Mercury acetate, S, 1066 Mercury azide, 5, 1062 Mercury bromide, S, 1059 Mercury cations Hg ... 

Black Powder 225 to 300, NC (13%N) 185, smokeless powder 185, NG 160, Nitrostarch 170, NH4N03 225, Tetryl 190, Mercury Azide 200, Silver Azide 200, Lead Azide 340 to 350, Cuprous Azide 210 to 350, Cupric Azide 245, Mercuric Fulminate 160 to 200, Silver Fulminate 200, Chedaite 200, blasting gelatin 207 to 211 and Picric Acid 225 to 350°... 

MD Mercury azide Mercury fulminate Mercury fulminate Mercury nitride Methylene dinitramine Methyl dichloroarsine... 

Figure A. 108 Mercury azide primary high explosive.

Primary explosives have a high degree of sensitivity to initiation through shock, friction, electric spark or high temperatures and explode whether they are confined or unconfined. Typical primary explosives which are widely used are lead azide, lead styphnate (trinitroresorci-nate), lead mononitroresorcinate (LMNR), potassium dinitrobenzo-furozan (KDNBF) and barium styphnate. Other primary explosive materials which are not frequently used today are mercury azide and mercury fulminate. 

Hg2Ne (c). Berthelot and Vieille10 found the heat of decomposition of mercury azide to be 143.5 Wohler and Martin1 found 100.0. 

Mercury peroxide, 4601 Mercury(I) azide, 4607 Mercury(I) bromate, 0270 Mercury(I) chlorite, 4074 Mercury cyanamide, 0520 Mercury fluoride, 4306 Mercury hypophosphate, 4612 Mercury nitrate, 4604 Mercury oxide , 4608 Mercury thionitrosylate, 4605 Mercury ) 5-nitrotetrazolide, 0977 Mercury ) acetylide, 0971 Mercury ) ao-dinitromethanide, 0703 Mercury ) amide chloride, 3993 Mercury ) azide, 4599 Mercury ) bromate, 0269 Mercury ) bromide, 0268 Mercury ) chlorite, 4071... 

Manganese(III) azide, 4697 Mercury azide, 4607 Mercury(II) azide, 4599... 

Composition See Mercury Fulminate, Lead Azide, Mercury Azide, Lead Styphnate, Nitrosoguanidine, Potassium Chlorate, Hexamtromannite, Tetryl, Guncotton. 

Mercury azide forms a white powder, which is insoluble in cold water, but relatively soluble in hot water. When gently heated to 212 Celsius, the salt begins to fizzle. The salt detonates if rapidly heated or when heated to 300 Celsius. The precipitated mercury azide is less sensitive then lead azide, but recrystallization of this precipitated form from hot water yields the very sensitive form of mercury azide (not prepared in this procedure). This recrystallized form is too unstable for use in priming mixtures or blasting caps, and its sensitivity is related to the ammonium iodide/nitrogen triiodide salt—can be detonated by a feather. The precipitated mercury azide however, can be used as an effective substitute for LZ in blasting caps. ... 

IF-"-ulminate of Mercury. Azides. Primers. Percussion Caps. 

Lead, silver, and mercury azides were all discovered in 1890-1891 by Curtius, but it was Hyronimus in 1907 who first obtained a (French) patent for the use of lead azide in the explosives industry. Following World War 1 interest in lead azide became more general as both the civilian and defense industries of Western Europe and the United States began to explore the use of the material [2]. It was during the 1920s and 1930s that it became more widely appreciated that lead azide is not only hazardous to handle but also hazardous to manufacture, and processes to reduce the difficulties were developed commercially and in ordnance factories to meet different specifications. 

Yellow Zn(NH2)2 and Cd (NH2)2 arc known [361], Mercury azide crystallizes with metal atoms centering capped trigonal prisms [362] a reported short N-N distance of 0.9 A influences the Madelung potentials, particularly of N(6). ZnGeN, has the wurtzite structure as does ZnAlON [111, 363],... 

MERCURIC BROMIDE (7789-47-1) HgBfj Noncombustible solid. Light and heat cause decomposition keep out of sunlight. Violent reaction with strong oxidizers, including chlorine trifluoride. Aqueous solution is acidic. Incompatible with acetylene, ammonia, azides (may form mercury azide, a heat- and shock-sensitive explosive), bases, caustics, amines, amides, inorganic hydroxides calcium (forms amalgam) carbide, chlorine dioxide, copper and its alloys hydrazines, indium (violent at 662°F/350°C), lithiiun, potassium, rabidium, sodium. Note Be especially careful not to allow this compound to accumulate in sink traps with many of the above incompatible... 

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