Physical nickel chloride

PHYSICAL PROPERTIES (nickel chloride) yellow or brown scales nickel chloride hexahydrate appears as green, deliquescent crystals or crystal powder anhydrous salt is golden yellow odorless solid soluble in ethanol and ammonium hydroxide soluble in water insoluble in ammonia MP (1,001°C, 1834°F) DN (3.55 g/cm at 20°C) SG (3.55) VD (NA) VP (1 mmHg at 671°C). (nickel sulfate) yellow cubes nickel sulfate hexahydrate appears as blue to blue-green tetragonal crystals of green transparent crystals becomes blue and opaque at room temperature odorless soluble in water, ethanol, and methanol insoluble in alcohol, ether, and acetone MP (840°C, 1544°F loses SOj) DN (3.68 g/cm at 20°C) SG (3.68) VD (NA). 

Physical and mechanical characteristics have been measured and catalogued for the phenyl quinoxaline family in a related internal research project. From these data, 3,3 -Bis(4-[3-ethynyl phenoxy] phenyl)-2,2 -diphenyl-6,6 biquinoxaline (or BA-DAB-BA for short) was selected. Bis-(triphenyl phosphine) nickel II chloride was chosen as the initiator. 

The extractable nickel content of soil affects the uptake of nickel by plant roots. Extracta-bility of nickel from soil is influenced by physical factors (e.g., texture, temperature, and water content), chemical factors (e.g., pH, organic constituents, redox potential), and biological factors (e.g., plant species variability, microbial activity) (NAS 1975, Wallace et al. 1977, Heale and Ormond 1982, Hazlett et al. 1983). Extractable nickel concentrations in soils, measured by treating soil samples with solutions of potassium chloride, ammonium acetate, acetic acid, or EDTA, usually range from <0.01 to... 

Zinc-nickel Zn-Ni alloys with 5 to 15 wt% Ni offer excellent corrosion resistance and are mainly used in the automotive, aerospace, and electronics industries. Above 15% Ni, the alloy coating becomes more noble than steel, and the corrosion-protection mechanism changes from a sacrificial to a pure physical one (comparable to pure Ni coatings, see Sect. 5.5.4.2.2). They can be electrode-posited from acid or alkaline baths. The acid baths are usually based on sulfate, chloride, sulfate-chloride, pyrophosphate, or acetate (Table 15). The system shows anomalous codeposition (see Sect. 5.5.1.2), which has been explained by a hydroxide suppression mechanism [47]. As in the case of Ni-Fe, the alkaline baths must contain complexing agents (see Sect. 5.5.4.6.2). The alloys electroplated from add haths contain approximately 10 to 14% Ni, whereas the alkaline Zn-Ni... 

Thiazolidine-2-thione (L) forms pseudotetrahedral complexes (MLgXg) with cobalt(n) chloride, bromide, or iodide, or nickel(n) iodide, but gives rise to (distorted) octahedral complexes (MLgXj) with nickel(n) chloride or bromide. The usual physical measurements show that thiazolidine-2-thione co-ordinates through the sulphur hetero-atom in tetrahedral complexes, and through both sulphur atoms in octahedral ones. ... 

Ilyushchenko, N.G., Anfinogenov, A.I. and Shchurov, N.I. (1991) Afera/ Interactions in Ionic Melts, Nauka, Moscow. Baimakov, Y.V. and Tomsldkh, I.V. (1968) Solidification of a transition metal on a cathode during electrolysis of its chlorides (nickel as an example), in Physical Chemistry and Electrochemistry of Molten Salts and Slags, Khimiya, Leningrad, pp. 52-64. 

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