Nickel solubilities

TWA (nickel metal, and insoluble compounds) TWA (nickel, soluble compounds)... 

Iron-nickel alloys are known to dissolve in the aluminium melts non-selectively. " As seen from Table 5.3, during dissolution of a 50 mass % Fe-50 mass % Ni alloy the ratio, cFe cNi, of iron to nickel concentrations in the melt is 1.00 0.05, i.e. it is equal to that in the initial solid material. The same applies to other alloys over the whole range of compositions. Respective saturation concentrations are presented in Table 5.4. The data obtained display a strong mutual influence of the elements on their solubilities in liquid aluminium because in its absence the solubility diagram for a constant temperature would be like that shown by the dotted lines in Fig. 5.5, with the eutonic point, E, at 2.5 mass % Fe and 10.0 mass % Ni. The effect of iron on the nickel solubility is seen to be more pronounced than that of nickel on the iron solubility. 

Properties Light-bronze-yellow mineral, metallic luster, contains 35.57% nickel. Soluble in nitric acid, d 4.6-5, Mohs hardness 3.5-4. Occurrence Canada (Ontario), Norway. 

Forti E, Salovaara S, Cetin Y et al (2011) In vitro evaluation of the toxicity induced by nickel soluble and particulate forms in human airway epithelial cells. Toxicol In Vitro 25(2) 454-461... 

Peltier, E., Allada, R., Navrotsky, A., and Sparks, D. L. (2005). Nickel solubility and precipitation in soils a thermodynamic study. Clays Clay Miner. 54, 153-163. 

NICKEL, SOLUBLE COMPOUNDS (soluble nickel compounds have variable molecular formulas. The molecular formula for nickel chloride NiCb the molecular formula for nickel sulfate is NIS04 Soluble nickel compounds have variable formula weights. The formula weight for nickel chloride is 129.61 the formula weight for nickel sulfate is 154.77). 

In some upland areas, the combination of high rainfall and acid rain have removed Ca and Mg from soils and lowered the pH to below 4. Under these conditions, aluminium accounts for over 70 % of the exchangeable cations and calcium for only a few percent [10.1]. Such conditions increase the mobility of many heavy metals, such as cadmium, zinc, manganese and nickel. Soluble aluminium is toxic to many plants (e.g. perennial ryegrass, clover, fine fescues and other acid-intol-... 

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