Item Name: Chemicalnickel concentrateDetails: DA series of concentrated liquid and the large-scale industrial production process has been tested for 20 years and continue to improve, can be recycled more than 7 cycles, stable and reliable, on-line to add, can also be used for rolling rack plating, heavy metals such as lead free , In line with ROSH directives. Coating dense, smooth non-porous surface can 4μm; coating with high corrosion resistance, 25-micron thick fuming nitric acid test up to 2 hours does not change color.
The use of nickel (as a natural meteoric nickel–iron alloy) has been traced as far back as 3500 BC. Nickel was first isolated and classified as a chemical element in 1751 by Axel Fredrik Cronstedt, who initially mistook its ore for a copper mineral. The element name comes from a mischievous sprite of German miner's mythology, Nickel (similar to Old Nick), that personified the fact that copper-nickel ores resisted refinement into copper. Nickel's most important modern ore minerals are laterites, including limonite, garnierite, and pentlandite. Major production sites include Sudbury region in Canada (which is thought to be of meteoric origin), New Caledonia in the Pacific and Norilsk in Russia.
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