An igniter for seismic prospection or for mining applications or for use in the crude oil and natural gas industries is described, including a detonator in which an explosive material, an igniting element and internal wires for initiating the igniting element are arranged, wherein the internal wires lead into a plug which is arranged at one end of the detonator. Particular embodiments utilize liquid sources of silane, including but not limited to cyclohexasilane, cyclopentasilane or related derivatives of these compounds. 98 and a particle size distribution with a lower number ratio geometric standard deviation of approximately 1. Additionally, the seat may be formed as an insert which fits within the wastegate port and is also free floating in the direction extending across the port which further assists in self-centering of the valve member and seat. 1 to 10% by weight of hydrogen peroxide and water and provided with certain buffering capacity, and the agent B made of constituents containing an alkali agent and water and provided with certain buffering capacity.