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topic 8122

Nickel Treatment By Sodium Hydroxide PPT


Dear Expert,

I was treating a solution of nickel sulfate and nickel chloride with sodium hydroxide and a green ppt. was formed. My problem is- What reaction is taking place? and What is the ppt. formed?

Juber Celino
- Baguio Cty, Phil.


The dissolved nickel is precipitating as nickel hydroxide.

Ted Mooney, Teds signature
Ted Mooney, P.E. RET
Pine Beach, New Jersey

May 2, 2009

The equation is

NiCl3 + NaOH = NaCl + Ni(OH)3

Vinod Agrawal
- Baroda, India

May , 2009

I believe that Vinod is correct except that the subscript on both sides of the equation should be '2' rather than '3'.


Ted Mooney,
Teds signature
Ted Mooney, P.E. RET
Pine Beach, New Jersey

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