Guhr dynamite

The above Shekhter equation is not applicable to expl mixts such. as Cheddites, Guhr-dynamite and some AN expls. Here deton vel increases with density until it reaches a certain maximum and then it. gradually decreases. The max shifts towards higher density with the increase in diam of chge. For example, for chge diam of Cheddite 20 mm, the max velocity (ca 25 50) is reached at density ca 1.12, while chge diam of 40mm, the max (ca... 

Accdg to Blasters Hdb (Ref 62, p 4), Howden s Dynamite (See under 1870), which was stronger than Guhr Dynamite, was used in construciton of Musconetcong Railroad tunnel,... 

Frozen Blasting Gelatin. Blasting Gelatin (See Vol 2, p B211-R) exists as a yellowish translucent, elastic mass of density about 1.63. It is very difficult to freeze. When frozen, it loses its elasticity and flexibility, and becomes a hard white mass. Unlike Guhr Dynamite and Straight Dynamite, it is more sensitive to shock when frozen than when in a soft and unfrozen state Refs 1) Naoum, NG (1928), 311-12 2) Davis (1943), 343... 

Plastic explosives, such as dynamites, are explosives rich in a liquid constituent, e.g. nitroglycerine, usually with dissolved high viscosity polymers. Guhr dynamite (no more in use) composed of 75% nitroglycerine and 25% kieselguhr, the first explosive to have a plastic consistency, owed this property to the high proportion of liquid it contained. 

Class I Guhr Dynamite (GD) (Kieselguhr Dynamite, Dynamite No 1 or Giant Powder No l), still used in Europe and some other... 

Accdg to the footnote of E.M. Sytnmes in the book of Naoum (Ref 15, p266) "Although the translator entered the explosives industry in 1911 he has never yet seen any Guhr Dynamite in USA"... 

Dynamite No 1. European name for Guhr-dynamite conte NG 75 kieselguhr 25%. 

Examples of secondary explosives are TNT, tetryl, picric acid, nitrocellulose, nitroglycerine, nitroguanidine, RDX, HMX and TATB. Examples of commercial secondary explosives are blasting gelatine, guhr dynamite and 60% gelatine dynamite. 

Dynamite with an inactive base (guhr dynamite) is not manufactured commercially in this country. Small quantities are used for experimental purposes where a standard of comparison is needed in studies on the strength of various explosives. 

The effect of ammonium nitrate in lowering the temperature of explosion of nitroglycerin mixtures is nicely illustrated by the data of Naoum 27 who reports that guhr dynamite (75% actual nitroglycerin) gives a temperature of 2940°, a mixture of equal amounts of guhr dynamite and ammonium nitrate 2090°, and a-mixture of 1 part of guhr dynamite and 4 of ammonium nitrate 1468°. 

S.1 (Dynamite). Same as Dynamite No 1 (European name for Guhr-dynamite contg NG 75 and kieselguhr 25%) to which not over 3% Na carbonate was added. A similar product was manufd in Engl between 1883 and 1886, called EC Dynamite Note See Vol 5, D1742-L and E4-R Ref Daniel (1902), 234 698... 

Dynamite was the first trade name introduced for a commercial explosive by Alfred Nobel it was nitroglycerine absorbed in kieselguhr (Guhr dynamite). Bonding of nitroglycerine by gelatinization with nitrocellulose was discovered by Nobel at a later date. 

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