ISSN:
0721-3115
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Hand-made, charcoal-containing black powders exhibited higher heats of combustion than commercial black powders; the values were also higher than values previously reported in the literature. However, commercial pellets attained maximum pressure in a closed bomb upon ignition more rapidly and had better physical integrity than the char-coal-containing laboratory products. When channel and furnace blacks were used instead of charcoal, pellets with excellent physical integrity were obtained. These products had lower heats of reaction than commercial black powder and also developed maximum pressure in a closed bomb more slowly. Although adding a small amount of water before or during grinding of mixtures of carbon, sulfur, and potassium nitrate did not affect the heat of reaction of the product significantly, this may have caused the density of some of the products to be abnormally low. Colloidal silica showed promise of being a useful additive in black powder manufacture.
Additional Material:
9 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/prep.19830080502
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