| 摘要 |
<p>1,213,018. Explosive compositions. ENTREPRISE MINIERE ET CHIMIQUE. 15 Feb., 1968 [16 Feb., 1967; 3 April, 1967], No. 7545/68. Heading C1D. An explosive composition comprises by weight 90-95% ammonium nitrate having an average particle size below 2 mm., 1À3-3% of a liquid petroleum hydrocarbon, and 1À75- 4-6% of a solid cyclic hydrocarbon or hydrocarbon derivative, for example naphthalene, resorcinol, or anthracene. The retention power of the ammonium nitrate is 2-7% by weight of liquid hydrocarbon when subjected to an acceleration of 2250 g for 5 minutes. The liquid hydrocarbon may be gas oil, diesel oil, naphtha, or fuel oil. Aluminium powder containing a small amount of a stearylamine salt or tallow may also be present. Other optional ingredients are Mg, Zn, Si, Fe, Ni, Cr, an alloy, a metallic nitrate or sulphide, sulphur, talc, kieselguhr, calcium carbonate, light magnesia, a fatty acid, an aliphatic amine, or a surface-active agent.</p> |
