Registration Dossier
Registration Dossier
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EC number: 236-068-5 | CAS number: 13138-45-9
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
Water Solubility (as reported in the 2008/2009 EU Risk Assessment for nickel nitrate):
- 2385 g/l at 0°C
Key value for chemical safety assessment
- Water solubility:
- 2 385 g/L
- at the temperature of:
- 0 °C
Additional information
(Cited from the 2008/2009 EURA from nickel dinitrate)
The available literature on the aqueous solubility of inorganic nickel compounds has been reviewed (Carlsen, 2001). Nickel nitrate is reported to be virtually freely soluble in water. Thus, a saturated solution of Ni(NO3)2•6H2O is reported to contain 49.8 (CRC, 2000) or 50.0 (Linke, 1965) gr/100 g solution, respectively, corresponding to a concentration of 3.44 mol/L. The solubility increases slightly with temperature. Thus the solubilities were estimated to be 2.48 and 4.79 mol/L, respectively. Within this temperature range the solid phase is Ni(NO3)2•6H2O. At higher temperatures the number of crystal water molecules is reduced to 4 (around) and to 2 around (Carlsen, 2001).
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