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Nickel(II) carbonate describes one or a mixture of inorganic compounds containing nickel and carbonate. From the industrial perspective, an important nickel carbonate is basic nickel carbonate with the formula Ni 4 CO 3 (OH) 6 (H 2 O) 4. Simpler carbonates, ones more likely encountered in the laboratory, are NiCO 3 and its hexahydrate.
Nickel hydroxides are used in nickel–cadmium and Nickel–metal hydride batteries. Nickel(II) hydroxide Ni(OH) 2, the main hydroxide of nickel is coloured apple green. It is known as the mineral theophrastite. β-NiO(OH) is a black powder with nickel in the +3 oxidation state.
Nickel is preeminently an alloy metal, and its chief use is in nickel steels and nickel cast irons, in which it typically increases the tensile strength, toughness, and elastic limit. It is widely used in many other alloys, including nickel brasses and bronzes and alloys with copper, chromium, aluminium, lead, cobalt, silver, and gold ( Inconel ...
Gaspéite presence in the geologic environment may be used as an ore mining indicator of nickel rich minerals nearby. Gaspéite stones are used for carving ornamental objects and animal figurines, and are also cut and polished into attractive apple green color (often veined) cabochons for jewelry use. [citation needed]
Nickel is both naturally abundant – it is the fifth most common element on earth – and widely used in industry and commercial goods. [2] Workplace nickel exposure is common in many industries, and the performance of normal work tasks can result in nickel skin levels sufficient to elicit dermatitis. [2]
Nickel acetate exists as an intermediate and the final result is that solid nickel, nickel oxide, Ni 3 C and carbon remain. [9] With malonate nickel can form a bis-malonato-nickelate anion, which can form double salts. [10] Nickel maleate can be made from maleic acid and nickel carbonate in boiling water.
One common representative is Bis(cyclooctadiene)nickel(0) (Ni(COD) 2), which contains two cyclooctadiene ligands. It is a 18VE compound with 10 electrons provided by nickel itself and 4x2 electrons more by the double bonds. This solid, which melts at 60 °C, is used as a catalyst and as a precursor for many other nickel compounds.
Nickel carbonyl (IUPAC name: tetracarbonylnickel) is a nickel(0) organometallic compound with the formula Ni(CO) 4.This colorless liquid is the principal carbonyl of nickel.It is an intermediate in the Mond process for producing very high-purity nickel and a reagent in organometallic chemistry, although the Mond Process has fallen out of common usage due to the health hazards in working with ...