actual image size. Image 1 of 3 Image 2 of 3 Image 3 of 3 Description copied from http://www.sulit.com.ph/index.php/view+classifieds/id/6006886/Sodium+Hydroxide Sodium hydroxide is the principal strong base used in the chemical industry. In bulk it is most often handled as an aqueous solution , since solutions are cheaper and easier to handle.