Pressure of gases developed on expln

PP85-99 (Measurement of pressures and compn of gases developed on expln by means of Bichel Pressure or the Crawshaw -Jones apparatus) 8)A.W.Crow W.E.Grim-shaw, TrRoySoc A230, 42-4 (1931) ( pp l°r measuring pressure in a closed vessel)... 

Trilita, Trotilo, Tol o Trinitrotolueno (Trinitrotoluene, TNT). Jimenez (Ref 9, pp 20—139) reports the following props for Spanish made TNT loading d, 1.59g/cc brisance value by Kast formula, 86 heat of expln, 1000cal/g temp developed on expln, 2800° vel of deton, 6800m/sec and vol of gases developed on expln at 0° and 760mm pressure, 690 /kg. Its characteristics and uses are also described in Ref 13, pp 400—403... 

Po atmospheric pressure equal to 1.0333kg/sq cm VQ = volume of gases developed on expln in liters per kg calculated at 0° and 760mm, with water as vapor... 

A further advantage of the addition of Al lies in the fact that Al203 formed during the reaction does not remain as a solid but vaporizes, thus increasing the overall volume of gases and the pressure. These increases are due to the fact that the bp of Al202 is only 2980° while the temp developed on expln of HE s is usually above 4500°... 

Ttauzl test values 355 to 435cc, deton velocity 3800 to 4850m/sec, impact sensi-. tivity with 2kg wt 60 to 70cm, temperature developed on expln 2580 to 3345°C, volume of gases on expln at NPT 832 to 924 litets/kg and specific pressure 9900 to 10270kg/sq cm... 

Jimenez (Ref 9, p 139) gives the properties of Spanish MF as follows loading d, 4.42g/cc vel of deton, S400m/sec expln temp, 180° impact sens, 2kg wt, 4cm heat of expln, 368 cal/g temp developed on expln, 4450° brisance, 128(TNT=86) andvolof gases at 0° and 760mm pressure, 315C/kg... 

Totalit. An expl compn consisting of AN 95.5 and paraffin wax (mp 54—56°) 4.5%, was developed as a military bursting charge. Its properties are reported as follows vol of gases at NTP, 972)2/kg heat of expln at const vol (w vapor), ll63cal/g temp developed on expln, 3105° specific pressure (force), 12021 and brisance value by Kast formula, 50x10 at d l,60g/cc (TNT=86xlO )... 

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