Excerpt from The Primary Volatile Products of the Carbonization of Coal: A Sequel to Bulletin 1, the Volatile Matter of CoalIt has been the object of this investigation to study the primary volatile products liberated from coal by heat, avoiding secondary reactions as far as practicable in obtaining these primary products, and the apparatus and methods used have been planned with this end in View. Secondary reactions have been largely prevented by reducing to a minimum the time of contact of the volatile matter with heated surfaces.The results of the investigation include information onthe amount and character of the primary volatile products from four types of American coals, data showing the effects of temperature and time of heating on the Character of the solid residue and volatilized products from coal, and experimental evidence of the importance and general effect of secondary reactions of the primary volatile matter on the final products of carbonization.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.