The Nickel sulfate is an organic compound with the formula NiSO₄. The IUPAC name of this chemical is nickel(2+) sulfate. With the CAS registry number 7786-81-4, it is also named as Nickel refinery dust. The product's categories are Inorganics; Metal and Ceramic Science; Nickel Salts; Salts.  It is mainly used for electroplating of nickel.

Physical properties about Nickel sulfate are: (1)CD/LogP: -1.031; (2)ACD/LogD (pH 5.5): -5.53; (3)ACD/LogD (pH 7.4): -5.53; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)#H bond acceptors: 4; (7)#H bond donors: 2; (8)Polar Surface Area: 82.98 Å²; (9)Enthalpy of Vaporization: 62.94 kJ/mol; (10)Boiling Point: 330 °C at 760 mmHg; (11)Vapour Pressure: 3.35E-05 mmHg at 25°C.

When you are using this chemical, please be cautious about it as the following:
It is harmful if swallowed and may cause sensitisation by inhalation and skin contact. It has limited evidence of a carcinogenic effect. In case of accident or if you feel unwell seek medical advice immediately (show the label where possible). Besides, this chemical is very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment and toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. When you are using it, wear suitable protective clothing and gloves, do not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer) and do not breathe dust. This material and its container must be disposed of as hazardous waste.

You can still convert the following datas into molecular structure:
(1)InChI=1S/Ni.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2;
(2)InChIKey=LGQLOGILCSXPEA-UHFFFAOYSA-L;
(3)SmilesS(=O)(=O)([O-])[O-].[Ni+2]

The toxicity data is as follows: