Contributions To Geochemistry 1949 PDF Download

Excerpt from Contributions to Geochemistry, 1949 A method is presented for the distillation and photometric estimation Of the Oil yield Of Oil-bearing shales. The Oil Shale is distilled in a closed test tube and the Oil extracted with toluene. The Optical density Of the toluene extract is used in the estimation Of Oil content and is converted to percentage Of Oil by reference to a standard curve. This curve is Obtained by relating the Oil yields determined by the Fischer assay method to the optical density Of the toluene extract Of the Oil evolved by the new procedure. The new method gives in a much Shorter time results similar to those obtained by the Fischer assay method. The applicability Of the new method to Oil-bearing shale and phosphatic shale has been tested. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.