Wilmington, Del.--Dupont Co. and Chemdex Corp., Mountain View, Calif., have formed Industria Solutions, a business-to-business electronic-commerce company targeting the $75 billion fluid-processing marketplace. Industria Solutions will be aimed at companies in industries such as chemicals and oil. It plans to launch a fluid-processing transactional portal by the end of the third quarter. Dupont, Chemdex and a group of undisclosed investors have jointly invested $20 million into Industria Solutions, Mountain View, Calif. Andover, Mass.-based CMGI has contributed an additional $10 million. Industria Solutions' portal will allow for the buying and selling of processing equipment used during the production of fluids designed for use in harsh environmental conditions.