This concise reference compiles definitions, compositions, and functional classifications of explosives and related materials, with an introductory discussion of nitrocellulose and distinctions between propellants, high explosives, and primary igniters. It surveys coal-mine, blasting, and military formulations, reports testing and permitted-list practices in different countries, and lists numerous proprietary and commercial names alongside indicative ingredient ranges. Entries emphasize safety, intended use, and manufacturing notes while acknowledging gaps and the evolving state of the trade. The volume is organized for quick technical lookup rather than narrative, aimed at practitioners and regulators working with explosive materials.