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Chemistry Forums for Students => Inorganic Chemistry Forum => Topic started by: rosco_pk on December 15, 2008, 07:55:46 PM

Title: Synthesis of Hexaamminenickel (II) tetrafluoroborate
Post by: rosco_pk on December 15, 2008, 07:55:46 PM
Ok so i made a compund in a lab - Hexaamminenickel (II) terafluoroborate ( [Ni(NH3)6][BF4]2) from Nickel Chloride (NiCl2) reacting with aqueous ammonia (NH3) then with ammonium tetraflouroborate[NH4][BF4]. The intermediate being [Ni(NH3)6]Cl2.

I need to write a balanced equation so i can calculate the percentage yeild of my product. Anyone able to help me??? I came up with NiCl2 + NH3 + (NH4)(BF4) = Ni(NH3)6(BF4)2 + Cl2 but i dont think that is correct.
Title: Re: Synthesis of Hexaamminenickel (II) tetrafluoroborate
Post by: AWK on December 16, 2008, 01:02:22 AM
Write down a double replacement reaction (metathesis) between nickel chloride and ammonium tetrafluoroborate first, then form a complex. Finally add both reaction
Title: Re: Synthesis of Hexaamminenickel (II) tetrafluoroborate
Post by: n4k on December 16, 2008, 05:33:51 AM
 ;)this is reaction addition
Title: Re: Synthesis of Hexaamminenickel (II) tetrafluoroborate
Post by: rosco_pk on December 16, 2008, 06:47:57 PM
thanks for the pointers.
Title: Re: Synthesis of Hexaamminenickel (II) tetrafluoroborate
Post by: lekoala on October 22, 2010, 06:41:48 AM
I no this is from 2008 but I'm at uni and I just did this lab so Im posting the equation for other new students

[NA(NH3)6]Cl2 + 2NH4 + 2BF4 –> [Ni(NH3)](BF4)2 + 2Cl- + 2NH+4

voila
Title: Re: Synthesis of Hexaamminenickel (II) tetrafluoroborate
Post by: Prince on April 27, 2015, 08:25:38 AM
aren't there suppose to be six ammonia ligands in the complex?