Temperature effect on nickel release in ammonium citrate
Related Experiment Video
Updated: Jun 20, 2026

Effect of Microwave Synthesis Conditions on the Structure of Nickel Hydroxide Nanosheets
Published on: August 18, 2023
Adriana R Oller1, Danielle Cappellini, Rayetta G Henderson
1NiPERA, Durham, NC 27713, USA. aoller@nipera.org
Abstract:
Leaching in ammonium citrate has been extensively used to assess the fraction of water-soluble nickel compounds present in nickel producing and using workplace aerosols. Leaching in ammonium citrate according to the first step of the Zatka protocol was found to overestimate the water-soluble nickel fraction by more than ten-fold compared to synthetic lung fluid (37 degrees C), when nickel carbonate and subsulfide were present. These results suggest that exposure matrices based on this method should be reexamined. Leaching studies of refinery particles are needed to further clarify this important issue.
Related Concept Videos
Precipitation Gravimetry
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...
Common Ion Effect
Enthalpy of Solution
Catalysis
2° Amines to N-Nitrosamines: Reaction with NaNO2
Formation of Complex Ions

