Nickel sulfate heptahydrate

Nickel sulfate heptahydrate occurs in nature as the mineral morenosite. 

The dehydration of nickel sulfate heptahydrate [13] resulted in nuclei being formed on the (110) face of crystals. These nuclei were fairly uniformly distributed half-eUpses. The number of nuclei increased widi time according to a square law and the initial relatively slow rate of growth increased up to a constant value. The catalytic effect resulting from the addition of monohydrate to the heptahydrate was again attributed [53] to changes in gas composition and not to reactant-product contacts. 

Elemental composition (in anhydrous NiS04) Ni 37.93%, S 20.72%, 0 41.35%. The water content in hexahydrate, NiS04 6H20, and heptahydrate, NiS04 7H20, are 41.12% and 47.98%, respectively. Nickel may be analyzed in aqueous solution by AA, ICP, and other instrumental methods (see Nickel). Sulfate may be analyzed in aqueous solution by ion chromatography. The compound may be characterized by x-ray methods. 

NICKEL SULFATE (7786-81-4, anhydrous 10101-97-0, hexahydrate 10101-98-1, heptahydrate) NiS04 6H20 NiS04 7H20 Noncombustible solid. The aqueous solution is a weak acid. Violent reaction with red phosphorus. Sulfates react violently with aluminum, magnesium. Incompatible with strong acids. Thermal decomposition releases toxic oxides of sulfur and nitrogen. 

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. 

The ESR signal intensity in the usual a -band region becomes observable only above 150°. It rises to a maximum at about 350°, then falls off sharply, approaching zero above 500°. This ESR behavior correlates well with both the acidity and the catalytic activity of nickel sulfate (Fig. 6). The heptahydrate has a strong crystal magnetic field. It thus exhibits no measurable ESR in the usual x-band region. 

Lactose Magnesium carbonate hydroxide Magnesium chloride Magnesium hydroxide Magnesium sulfate anhydrous Magnesium sulfate heptahydrate D-Mannitol Meroxapol 105 Nickel Nitrogen Papain Poloxamer 183 Poloxamer 212 Poloxamer 215 Poloxamer 217 Poloxamer 231 Poloxamer 234 Poloxamer 235 Poloxamer 237 Poloxamer 238 Poloxamer 282 Poloxamer 284 Poloxamer 288 Poloxamer 331 Poloxamer 333 Poloxamer 334 Poloxamer 335 Poloxamer 338 Poloxamer 401 Poloxamer 402 Poloxamer 403 Poloxamer 407 Polymaleic acid Polymaleic acid sodium salt Potassium acid tartrate... 

A sample of green crystals of nickel(II) sulfate hep-tahydrate was heated carefully to produce the bluish-green nickel(II) sulfate hexahydrate. What are the formulas of the hydrates If 8.753 g of the heptahydrate produces 8.192 g of the hexahydrate, how many grams of anhydrous nickel(II) sulfate could be obtained ... 

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