On the Permeability of Caoutchouc for Various Substances in Acetone Solutions (Classic Reprint)

Excerpt from On the Permeability of Caoutchouc for Various Substances in Acetone Solutions In 1866 Payen (2) worked with balloons of rubber, both vulcanized and unvulcanized, which he filled with water and weighed at stated intervals. He found that the water escaped through the unvulcanized rubber about six times as fast as it did through the vulcanized, the exact ratio being 23 to 4. He claimed to have found the rubber, when viewed through a microscope, full of fine holes or pores;and he insisted upon the porosity of the caoutchouc as the explanation of the phenomena. 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.