This Tema Nord report presents a study based on open information and custom market research to review the most common perfluorinated substances (PFC) with less focus on PFOS and PFOA. The study includes three major parts:1) Identification of relevant per-and polyfluorinated substances and their use in various industrial sectors in the Nordic market by interviews with major players and database information; 2) Emissions to and occurence in the Nordic environment of the substances described in 1); 3) A summary of knowledge of the toxic effects on humans and the environment of substances prioritized in 2); There is a lack of physical chemical data, analystical reference substances, human and environmental occurrence and toxicology data, as well as market information regarding PFCs other than PFOA and PFOS and the current legislation cannot enforce disclosure of specific PFC substance information.

Electrodeposition of Chromium from Chromic Acid Solutions focuses on the behavior of catalysts used in the electrodeposition of chromium from chromic acid solutions, particularly noting the characteristics, compositions, reactions, and applications of chromium. The book first offers information on the discovery of chromium by Nicolas-Louis Vauquelin, taking into consideration the experiments that he conducted to identify this metal. The manuscript then surveys the economic value of chromium deposition. Particularly given importance are the non-galling and wear resistant characteristics of chromium, enabling it to become a primary component in modern machines. The text describes the common forms of deposited chromium and catalyst balance. The differing electrochemical behaviors of cold chromium and bright chromium are discussed. The manuscript also presents information on empirical tests for catalyst concentration and bath balance and fluoride and complex fluoride catalyzed baths. The book is a vital source of data for readers wanting to explore electrodeposition of chromium from chromic acid solutions.