The Nickel tetrafluoroborate hexahydrate, with the CAS registry number 15684-36-3 and EINECS registry number 238-753-4, has the systematic name of nickel(2+) tetrafluoroborate hydrate (1:2:6). It is a kind of blue-green crystals which is also hygroscopic, and the molecular formula of this chemical is B₂F₈H₁₂NiO₆.

The physical properties of Nickel tetrafluoroborate hexahydrate are as following: (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 0 Å².

You should be cautious while dealing with this chemical. It may cause burns and cancer. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection, and in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice; Avoid exposure - obtain special instruction before use; In case of accident or if you feel unwell, seek medical advice immediately (show label where possible).

You can still convert the following datas into molecular structure:
(1)SMILES: [Ni+2].F[B-](F)(F)F.F[B-](F)(F)F.O.O.O.O.O.O
(2)InChI: InChI=1/2BF4.Ni.6H2O/c2*2-1(3,4)5;;;;;;;/h;;;6*1H2/q2*-1;+2;;;;;;
(3)InChIKey: BFFWGFMAXHCLDV-UHFFFAOYAO