| 摘要 |
Methods and compositions for providing an emulsified gassing agent for use in sensitizing emulsion explosive compositions. The emulsified gassing agent is preferably a water-in-oil emulsion such that it is easily combinable with water-in-oil explosive emulsion compositions. The emulsified gassing agent and the emulsion explosive can be kept separate until the point in time immediately prior to introduction into the blasting site. The emulsified gassing agent will contain a gassing agent which releases gas when placed in contact with the emulsion explosive composition. One preferred gassing agent is sodium nitrite, but other gassing agents are also usable. The emulsion may also comprise a companion salt such as calcium or sodium nitrate, a vehicle such as No. 2 diesel oil, a surfactant, and a carrier such as water. |
