Nickel nitrate hexahydrate

Dilute mineral acids attack nickel to a varying extent. The metal dissolves readily in dilute nitric acid. Evaporation of the solution forms emerald green crystals of nickel nitrate hexahydrate, Ni(N03)2 61120. 

Nickel nitrate hexahydrate may be prepared by several methods based on the reaction of dilute nitric acid on nickel powder, nickel oxide or nickel carbonate. The reaction is exothermic and requires controlled cooling during production. The hexahydrate can be dehydrated to anhydrous salt by treatment with fuming nitric acid. 

Synonym Neatsfoot Oil Necatorina Nechexane Neutral Ahhonium Pluoride Neutral Anhydrous Calcium Hypochlorite Neutral Lead Acetate Neutral Nicotine Sulfate Neutral Potassium Chromate Neutral Sodium Chromatetanhydrous Neutral Verdigris Nickel Acetate Nickel Acetate Tetrahyorate Nickel Ammonium Sulfate Nickel Ammonium Sulfate Hexahydrate Nickel Bromide Nickel Bromide Trihydrate Nickel Carbonyl Nickel Chloride Nickel Chloride Nickel Cyanide Nickel Iiu Fluoborate Nickel Fluoroborate Solution Nickel Fluoroborate Nickel Formate Nickel Formate Dihyorate Nickel Nitrate Nickel Nitrate Hexahydrate Nickel Sulfate Nickel Tetracarbokyl Nickelous Acetate Nickelous Sulfate Nicotine Nicotine Sulfate Nifos Nitralin Nitram O-Nitraniline P-Nitraniline Nitric Acid Nitric Acid, Aluminum Salt Nitric Acid, Iron (111) Salt Compound Name Oil Neatsfoot Carbon Tetrachloride Neohexane Ammonium Fluoride Calcium Hypochlorite Lead Acetate Nicotine Sulfate Potassium Chromate Sodium Chromate Copper Acetate Nickel Acetate Nickel Acetate Nickel Ammonium Sulfate Nickel Ammonium Sulfate Nickel Bromide Nickel Bromide Nickel Carbonyl Nickel Chloride Nickel Chloride Nickel Cyanide Nickel Fluoroborate Nickel Fluoroborate Nickel Fluoroborate Nickel Formate Nickel Formate Nickel Nitrate Nickel Nitrate Nickel Sulfate Nickel Carbonyl Nickel Acetate Nickel Sulfate Nicotine Nicotine Sulfate Tetraethyl Pyrophosphate Nitralin Ammonium Nitrate 2-Nitroaniline 4-Nitroaniline Nitric Acid Aluminum Nitrate Ferric Nitrate... 

In another experiment, glass wool was added to the hydrolyzed magnesium methoxide gel prior to heating in the autoclave. The quartz wool coated with high-surface-area magnesium oxide was impregnated with nickel nitrate hexahydrate and activated as already described. 

Nickel nitrate hexahydrate, sodium aluminate, and sodium hydroxide (alt E. M. Science) were used as received. X-ray diffraction patterns were obtained on either a Phillips XRG 3100 or a Scintag PAD V diffractometer using Cu K alpha radiation. 

The Ni/AI catalyst used was prepared in the laboratory by coprecipitation following the method of AMJbaid and Wolf (21). Nickel nitrate hexahydrate and aluminum nitrate nonahydrate were dissolved in distilled water in the appropriate proportions to obtain a Ni Al ratio of 1 2. This solution was precipitated with amonium hydroxyde until the pH reached 7.9. The precursor was calcined in air atmosphere, with a low heating rate, reaching a final temperature of 750 °C during 3 hours. 

Sodium tetrahydroborate, nickel nitrate hexahydrate, and nominally anhydrous acetonitrile are commercially available. Tri-o-tolyl phosphite is prepared by the method of Walsh.6... 

Nickel dinitrate hexahydrate Nickel(2+) dinitrate hexahydrate Nickel(2+) nitrate, hexahydrate Niokel(ll) nitrate, hexahydrate (1 2 6) Nickelous nitrate hexahydrate Nitric acid, niokel(2+) salt, hexahydrate. Used in nickel plating, preparation of nickel catalysts, manufacture of brown ceramic colors. Crystals mp = 57 bp = 137 d = 2.05 soluble in H2O (2.5 g/ml), EtOH LDso (rat orl) = 1.62 g/kg. Mallinckrodt Inc. Nihon Kagaku Sangyo Noah Chem. 

Nickel nitrate hexahydrate (58 g) is dissolved in distilled water (80 ml) and rubbed in a mortar with kieselguhr (previously extracted with hydrochloric acid) until, after 30-60 min the mixture flows like a heavy oil. It is then added slowly to a solution of ammonium carbonate monohydrate (34 g) in distilled water (200 ml) the precipitate is filtered off under suction, washed in two portions with water (100 ml), and dried at 110°. Shortly before use, this material is reduced at 450° for 1 hour in a stream of hydrogen (10-15 ml/min). 

KAL/PUR] Kalinichenko, I. I., Purtov, A. 1., The thermal decomposition of nickel nitrate hexahydrate, Russ. J. Inorg. Chem., 11, (1966), 891-893. Cited on page 198. 

Nickel nitrate hexahydrate [13478-00-7] M 290.8, m 57". Crystallise it from water (3.3g/ml) by partial evaporation in a desiccator. Store it in a desiccator as it is deliquescent. 

W.-N. Wang, Y. Itoh, I. W. Lenggoro, K. Okuyama Nickel and nickel oxide nanoparticles prepared from nickel nitrate hexahydrate by a low pressure spray pyrolysis, Mat. Sci. Eng. B. Ill (1), 69-76 (2004). 

The addition of tetraethyl orthosilicate, TEDS, to the alcdiol solutions of anhydrous halide was proved to be a suitable method to prepare electrochromic Ni-based thin films (Moser, 1989). Coatings obtained from such sols exhibited a higher hardness and better adhesion to the substrate and a reversible transmittance change of 53% at 550 nm. Mild et al. used a mixture of nickel nitrate hexahydrate with ethylene glycole and tetraethyl orthosilicate (TEDS) for the fabrication of nickel oxide layers (Miki, 1995). Ni(Si)oxide layers (Ni/Si = 2.5-10) were studied by Surcaet al. They added 3-aminopropyltrimethoxysilane (3-APMS) to the nickel sulfate sol (see above) (Surca, 1997). The electrochromic changes were about 50% (500 nm, 100th cycle). 

XI.5.1 Hydrogenation catalyst Prepare by weighing 20 0.1 g of nickel nitrate hexahydrate into a 100-mL beaker. Add 40 mL of methanol. Weigh 20 0.1 g of Chromosorb P into an evaporating dish. After the nickel nitrate crystals have dissolved, slowly pour the solution over the Chromo-... 

Transition metal nitrate hydrates are industrially favored precursors for the preparation of supported metal (oxide) catalysts because of their high solubility and facile nitrate removal. The final phase and particle size depend on the experimental conditions, as reported for both supported and unsupported metal nitrates [1-3]. Several authors report that decreasing the water partial pressure during the decomposition of unsupported nickel nitrate hexahydrate, via vacuum or a high gas flow, increases the final NiO surface area [3, 4], The low water partial pressure results in dehydration of the nickel nitrate hydrate to anhydrous nickel nitrate followed by decomposition to NiO. Decomposition at higher particle pressures, however, occitrred through the formation of intermediate nickel hydroxynitrates prior to decomposition to NiO. Thus, NiO obtained via intermediate nickel hydroxynitrate species showed a poorer siuface area (1 m /g) compared to NiO obtained via anhydrous nickel nitrate species (10 mVg) [4]. 

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