Occupational nickel dermatitis in the electroforming industry
Contact Dermatitis
|October 1, 1980
Abstract:
An outbreak of occupational dermatitis in an electroforming plant where there was heavy exposure to nickel is described. Patch test investigations confirmed nickel allergy in 13 of 27 exposed individuals. Nickel chloride was found to be a more reliable patch test allergen than nickel sulphate. Improvements in industrial hygiene led to an immediate decrease in the incidence of dermatitis. Persistent patch test sensitivity to nickel was found in three individuals who had been removed from the process chemicals for some years.
Related Concept Videos
01:03Precipitation Gravimetry
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
01:08Electrodeposition
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
Electrodeposition can...