Nickel Electroplated

Nickel carbonate is used in the manufacture of catalysts, in the preparation of colored glass (qv), in the manufacture of certain nickel pigments, and as a neutralizing compound in nickel electroplating solutions. It also is used in the preparation of many specialty nickel compounds. 

Nickel acetate tetrahydrate [6018-89-9] Ni(C2H202) 4H2O, is a green powder which has an acetic acid odor, density 1.74 g/cm. When heated, it loses its water of crystallization and then decomposes to form nickel oxide. Nickel acetate is used as a catalyst intermediate, as an intermediate in the formation of other nickel compounds, as a dye mordant, as a sealer for anodized aluminum, and in nickel electroplating (59). 

Electroplating. The second-largest appHcation for nickel chemicals is as electrolytes ia nickel electroplating (qv). In ordinary plating systems, nickel present ia the electrolyte never forms on the finished workpiece the latter results from dissolution and transfer from nickel anodes. Decorative nickel plating is used for automobile bumpers and trim, appHances, wire products, flatware, jewelry, and many other consumer items. A comprehensive review of nickel electroplating has been compiled (164). 

Most nickel electroplating is carried out in solutions based oh the mixture of nickel sulphate, nickel chloride and boric acid proposed, by O. P., Watts . Typical composition and operating conditions are ... 

Nickel dioxide, 77 107 Nickel double salts, 77 113 Nickel electrodes, 3 430 72 216 Nickel electroplating solutions, 9 818t Nickel extraction, 70 791 Nickel ferrite brown spinel, formula and DCMA number, 7 348t Nickel fibers, 77 108 Nickel fluoride complexes, 77 111 Nickel fluoride tetrahydrate, 77 109-110 Nickel fluoroborate, 77 111 Nickel fluoroborate hexahydrate, 4 157t, 158, 159... 

Our approach utilized the metals gold, platinum, then later gold, platinum, and nickel electroplated in succession because the catalytic decomposition of hydrogen peroxide reaction we tested was most efficiently catalyzed with platinum.After fabrication of the nanowires they were freed by removing the conductive silver backing with nitric acid and the sacrificial template with a strong base, sodium hydroxide. Then nanorods were washed with deionized water and ultracentrifuged to achieve a neutral pH. 

Boric acid is used as an antiseptic in mouthwashes, eye washes, and ointments a preservative in natural products to protect wood against insect damage in washing citrus fruits as a catalyst in hydrocarbon oxidation as a flame retardant in cellulose insulation in nickel electroplating baths and as a buffer in ammonia analysis of wastewaters hy acid titration. 

Nickel chloride is used in nickel electroplating baths. It also is used to prepare various nickel salts and nickel catalysts and in industrial gas masks to protect from ammonia. 

Nickel sulfamate is used as an electrolyte in nickel electroplating systems. Preparation... 

ASTM B503, Std. Practicefor Use of Copper and Nickel Electroplating Solutionsfor Electroforming, American Society for Testing and Materials, Philadelphia, Pa., 1984 Ref. 57, Chapts. 13, 14, and 15. 

Bright P, Burge PS, O Hickey SP, et al. 1997. Occupational asthma due to chrome and nickel electroplating. Thorax 52 28-32. 

Recent developments in ion chromatography are filling the analytical gap between the atomic adsorption spectroscopy and inductively coupled plasma metal spectroscopy. Ion chromatography can now not only determine what trace metals are present, but also their oxidation state, the degree of complexation, and the stability of the complex. For example, a nickel electroplating solution was analyzed by diluting it with a water eluant solution. The analysis revealed the following ion concentrations. 

A nickel electroplating line uses a dip-rinse tank to remove excess plating metals from the parts. Currently, a single tank is used that requires R gal/h of fresh rinse water to clean F parts/h (see Figure 107). Assume the cleaning is governed by the following equilibrium relation ... 

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