Chemical and Microscopic Analysis of an Unknown Substance

This document, page 3 of a larger report, details the laboratory analysis of an unidentified substance. The material exhibits specific physical properties, notably that it does not melt but decomposes when heated, and it produces a thick, yellow-gray smoke when exposed to the heat of a cigarette. Solubility testing was conducted using alcohol, acetone, turpentine, toluene, and alo-oxime; the substance showed no significant solubility in these agents, with only a trace amount dissolving in acetone. A chemical analysis was performed using a Roehlen-Weinbrenner apparatus and the Dumas method for nitrogen determination, revealing a composition of 72.6% carbon, 7.1% hydrogen, 17.7% oxygen, and 2.6% nitrogen, with an ash content of 0.29%. Microscopic examination and the chemical data suggest the substance is not a uniform nitration product of an organic raw material, as the nitrogen content is significantly lower than that of explosives like TNT (18%) or nitrocellulose (13%). However, the report notes that it could potentially be a mixture of an oxygenated organic material with a nitro compound or a nitric acid ester. Regarding its origin, the investigators concluded that nothing definitive could be stated. The structure of the material suggests it was not manufactured for specific technical purposes, appearing instead to be a natural product.