Solubilisation of nickel from powders at near-neutral pH and the role of oxide layers
Source abstract
Abstract
Dissolution rates of nickel powder in pH 5 acetate buffers were observed to be an effective indicator of the thickness of the oxide layer on the surface of the nickel particle. Tests on powders pre-cleaned with acid or pre-oxidized in air demonstrated this dependence. The saturation level of nickel in the solution is not greatly affected by the initial state of the powder. Effects of additive solutes are most pronounced during short-term dissolution tests. Among such solutes, reduced sulphur and selenium species, phosphate, fluoride, oxalate, and permanganate cause the largest increases in dissolution rate, while hexacyanoferrate, arsenite, periodate, chromate, vanadate, molybdate, iodate, and tungstate suppress the dissolution.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metal Extraction and Bioleaching · Corrosion Behavior and Inhibition · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (46)
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