Nickel sulphate hexahydrate

SYNS NICKEL MONOSULFATE HEXAHYDRATE NICKEL SULFATE HEXAHYDRATE NICKEL (II) SULFATE HEXAHYDRATE NICKEL SULPHATE HEXAHYDRATE SULFURIC ACID, NICKEL(2+) SALT, HEXAHYDRATE... 

Results of study of the decomposition of nickel sulphate heptahydrate through nickel sulphate hexahydrate and nickel sulphate tetrahydrate at 0.015 bar (II torr) are presented. X-ray diffraction patterns are presented for some of the different solids. Detailed measurement results were not tabulated, but the graphical presentation and the reported thermodynamic quantities for the dehydration reactions are in reasonable agreement with results reported in the later study of Kohler and Zaske [64KOH/ZAS]. 

Nickel sulfate (1 1) Nickel (II) sulfate Nickel (II) sulfate (1 1). See Nickel sulfate Nickel sulfate hexahydrate CAS 10101-97-0 EINECS/ELINCS 232-104-9 Synonyms Nickel monosulfate hexahydrate Nickel (II) sulfate hexahydrate Nickel (II) sulfate hexahydrate (1 1 6) Nickel sulphate hexahydrate Sulfuric acid, nickel (2+) salt, hexahydrate... 

Nickel sulfate (ous). See Nickel sulfate Nickel sulfide Nickel sulfide (3 2) a-Nickel sulfide (3 2) crystalline. See Nickel subsulfide Nickel sulphate. See Nickel sulfate Nickel sulphate hexahydrate. See Nickel sulfate hexahydrate... 

Nickel Hypophosphite, NiH4(P02). 6H20, may be obtained by double decomposition of nickel sulphate and barium hypophosphite solutions, or by dissolving nickel hydroxide in hypophosphorous acid. From the solution thus obtained the hexahydrated salt crystallises out in green regular octahedra. 

EINECS 232-104-9 HSDB 1114 NCI-C60344 Nickel sulfate Nickel sulfate (NiS04) Nickel sulfate(1 1) Nickel sulphate Nickel(2+) sulfate Nickel(ll) sulfate Nickelous sulfate NSC 51152 Sulfuric acid, nickel(2+) salt (1 1) Sulphuric acid, nickel(ll) salt. Also occurs as the hexahydrate [10101-97-0 232-104-9] and the heptahydrate [10101-98-1 205-788-1]. Used in the electroplating trade, Hexahydrate loses 5H2O at 100 and becomes anhydrous at 280. Soluble in H2O (0.7 g/ml) LDso (gpg sc) 62 mg/kg. 

Solubility data [34BEN/THI], [39ROH] indicate that the P-hexahydrate is the stable solid in contact with saturated solutions of nickel sulphate in water for temperatures between 325 and 358 K, where lower hydrates begin to predominate. As might be expected, addition of sulphuric acid results in the appearance of the lower hydrates at lower temperatures [39ROH]. 

Ang, H-M. and Mullin, J.W. (1979) Crystal growth rate determinations from desupersaturation measurements nickel ammonium sulphate hexahydrate. Transactions of the Institution of Chemical Engineers, 57, 237-242. 

Mullin, J.W. and Ang, H-M. (1977) Supersaturation and crystal size distribution changes during the precipitation of nickel ammonium sulphate hexahydrate. Kristall und Technik, 12, 105-115. 

Owing to its resemblance to ferrous sulphate or green vitriol it is frequently known as nickel vitriol. It is found in nature as the mineral moresonite. It effloresces in air, yielding the hexahydrate. At 100° C. it loses 4 molecules of water, and at 280° C. becomes anhydrous. 

---