Tetryl Trauzl test

Phenyl ethyleneglycol Nitrated Products. Nitration of phenylethyleneglycol with mixed nitric-sulfuric acid gave an expl product, mp ca 85°, which was claimed to be 110% as powerful as TNT, as detd by the Trauzl test, and whose performance was intermediate between that of Tetryl and TNT (Ref 1)... 

Heat of combustion (calcd) 812.6 kcal/mol Heat of explosion (calcd) 303.4 kcal/mol Impact sensitivity (FT) = Tetryl Power by ballistic mortar 129% TNT Power by Trauzl test 137% TNT Temp developed on expln (calcd) 3247 Thermal stability satisfactory This expl compd is not found in Beil or in CA... 

O2NO).CH.CHj.N(N02) mw 251.12, N 27.89% OB to C02 minus 15-9% solid mp 112—113° was prepd by nitrating with fuming nitric acid in the presence of acetic anhydride at below 15°, the product obtd by condensing (on heating) urea, C0(NH2)2. with 1,3-di amino-2-propanol, H2N.CH2.CH(OH).CH2.NH2. It is a very powerful expl (Trauzl Test Value = 135% PA), comparable in Impact Sensitivity to Tetryl (FI Value = 60% PA), but of unsatisfactory Thermal Stability (99° Heat Test 3 minutes 100° Vacuum Test — more than 15cc in less than 16 hrs). It is hydrolyzed by water. See Refs 2 3 Refs 1) A.H. Blatt, OSRD Rept 2014(1944) 2) A.F. McKay D.F. Manchester, JACS 71, 1972(1949) CA 43, 9065(1949) 3) A.F. 

Impact Sensitivity — comparable with Tetryl Initiation — 0.4g required 0.19 MF Power by Ballistic Mortar — 76% TNT Power by Trauzl Test 80% TNT Stability, Chemical — unstable decompd by moisture... 

Following are some props of silver acetyl-ide which was prepd from ammoniacal solns of silver nitrate deton vel 1880 m/sec at d (not given) power by Trauzl test 132 cm at d 1.67(Ref 6, pp 304-5) minimum initiating charge for 0.8g tetryl, 0.07g AgaCj compared co 0.02g for LA(Ref 2,p 4) heat of expln 400 cal/g... 

Hexanitroazobenzene is a very powerful and brisant high expl. Its Power as measured by the Trauzl test is 113% PA or 123% TNT and its Impact Sensitivity is between that of tetryl and PA the FI value is 617t> PA. According to Davis (Kef 3) this expl is suitable for boosters and compound detonators. Tke presence of the a o group in hexanitro azobenzene makes it more powerful and brisant than hexanitrodipbenylamine (qv)... 

HNBPh is a powerful expl its Trauzl test value is about 10% higher than for HNBPhA (Refs 6 7). It is more sensitive to impact than TNB and less sensitive than Tetryl(Ref 5X Jahn(Ref 4) patented the following expl mixt claimed to be suitable for loading torpedoes and mines HNBPh 12, AN 80, NG 4 flour 4%... 

Initiating ability, min amts reqd for initiation of 0.4 g HE are for TNT 0.10g, PA 0.05, Tetryl 0.04, Exp D 0.15, which values are smaller than corresponding valves for MF Power by Trauzl test, 135% PA 140% TNT Sensitivity to beat, detonates when heated rapidly or when exposed to a flame Stability, moderately volatile hygroscopic Toxicity, details are unknown (Ref 22)... 

The kinetics of the alkaline decompn of the subject compd was studied by Jones (Ref 3) Simkins Wright (Ref 4) prepd the compd by different methods and detd irs expl props, which are as follows 1) comparable to Tetryl in expl props 2) FI - 78% of Picric Acid 3) power by Trauzl test 136% of PA 4) Decomp w/o ignition at 205°, but ignites at once at 350° 5) decompd... 

In the Trauzl test, trinitrotriazidobenzene gives 90% as much net expansion as PETN tctryl gives 70%, TNT 60%, mercury fulminate 23%, and lead azide 16%. Used as a high explosive in compound detonators and initiated with lead azide, trinitrotriazidobenzene is about as strong as PETN and is stronger than tetryl. 

Brisance — no info Decomposition Temperature — 180° with evolution of white fumes Detonation Velocity — 7132m/sec at density 1.35 Heat of Combustion at Cv and 18°— 519kcal/mole Heat of Formation at Cv — 74.6kcal/nole Hygroscopicity — very high Impact Sensitivity with 5kg Weight — at the heights 1.0 to 1.5 meters only 2 detonations out of 100 drops Initiation Sensitivity — detonates very difficultly at density 0.70 by means of 3g MF Power by CUP Method (Modified Trauzl Test) — 69.5% PA vs Tetryl 120% Stability — low... 

In the small Trauzl test pentryl caused an expansion of 15.8 cc., while the same weight of tetryl caused one of 13.8 cc., TNT 12.2 cc., and picric acid 12.4 cc. In the small lead block compression test, in which 60 grams of the explosive was exploded by means of a detonator on top of a lead cylinder 64 mm. long, it was found that pentryl produced a shortening of the block of 18.5 mm., tetryl 16.6 mm., picric acid 16.4 mm., TNT 14.8 mm., and diazodinitrophenol 10.5 mm. Determinations of velocity of detonation made with half-meter lengths, the explosives being... 

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