Chemisch-Technische Reichsanstalt

It should be noted that, prior to Parr, other calorimeters existed which used oxygen under pressure for combustion in closed vessels, namely, those of Berthelot (1881) and its modifications and variations, Berthelot-Vieille, Moreau, Landrieu-Malsallez, and of the Commission des Substances Explosives . Later bombs were those of Mahler (1892), Attwater (1899) and Kast (constructed at Chemisch-Technische Reichsanstalt, New-Babelsberg, near Berlin, Ger)... 

At the Chemisch-Technische Reichsanstalt [56] the figures given on p. 148 were found for the rate of the detonation of mercury fulminate, pressed into detonators ... 

The explosive properties of sodium, calcium, strontium and barium azides have been investigated at the Chemisch-Technische Reichsanstalt [135]. These azides differ markedly from lead, silver and cupric azides in that they show none of the properties of primary explosives. All three may be ignited by a spark, a glowing wire or the flame of blackpowder. Calcium azide bums most rapidly and has distinctly marked explosive properties. Larger quantities of it may explode when ignited in a closed tin, while strontium and barium merely bum violently. Calcium azide detonates under the influence of a detonating cap. The sodium azide does not decompose in these conditions. The other azides show weak decomposition under the influence of a standard (No. 3) detonator. Their most important properties are tabulated below. 

Haid in the Chemisch-Technische Reichsanstalt in Berlin suggested [67] substitute fusible mixtures of the S-type which were introduced towards the end of World War II owing to the shortage of nitro compounds. Their fcomposition is given in Table 56. 

Fig. 72. Explosive properties of the mixtures Fig. 73. Explosive properties of the mixtures of potassium chlorate with kerosene (according of potassium chlorate with vaseline (aceord-to Chemisch-Technische Reichsanstalt [73]). ing to Chemisch-Technische Reichsanstalt...

Fig. 74. Explosive properties of the mixtures of potassium chlorate with nitrobenzene (according to Chemisch-Technische Reichsanstalt [74]).

According to Chemisch Technische Reichsanstalt [79J a well-dried (64 hr at a temperature of 120°Q mixture having the composition ... 

Values measured later in the Chemisch-Technische Reichsanstalt [26] are well in line with those reported earlier. The increase of specific gravity accompanying the increase of nitrogen content is extremely small, namely ... 

Bolle, Erwin(1885( >1938). Ger scientist who specialized in ballistics. He worked for 35 years at the Chemisch-Technische Reichsanstalt near Berlin and contributed numerous publications to the science of expls ballistics Refs l)Anon,SS 33,334(1938) 2)W.Rimarski,SS 34,226-7(1939)... 

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