write two ways to remove nickel from surface of Ni solution.?
Answers
Explanation:
1a] Soak a clean cotton cloth in vinegar; wring out the excess, and thoroughly scrub the dirtied areas of Ni plating with the vinegar-soaked cloth. You may need to re-soak the cloth after scrubbing for a while.When finished, wipe excess vinegar off Ni plating by passing a soft cloth soaked in water over the area.
[1b]For stubborn stains, soak Ni plated piece instead of simply wiping it down. Combine four parts water with one part vinegar in a container large enough to soak the piece in. Do not use straight vinegar, since it is often too abrasive to expose to thin Ni coatings for extended periods. Soak the Ni plated item in the solution for several hours to overnight. Upon pulling it out, wipe the dirt and tarnish off with a cloth and rinse the Ni under clean water to remove any traces of vinegar.
[2a] If the tool does not contain Cu/ its alloy, apply straight NH3 (pure NH3 not diluted).It is very effective but it can also be very damaging to Ni plating if the plating is allowed to sit in it for too long. Pour NH3 in a container and dip a scouring pad into it.Vigorously rub the dirtied area of the Ni with NH3-soaked pad rinse with H2O.
[2b]For a more intense cleaning of the item having no Cu/ its alloy, combine equal parts H2Oand NH3 into a bucket . Allow Ni plated item to soak in this solution for 30 minutes before brushing at the stain or dirt with a toothbrush. When done, rinse the item under clean water. Never perform this with straight NH3 or for more than 30 minutes at once, since the harsh nature of NH3 will cause the plating to chip and flake off.
[3]The easiest way to remove Ni plating is with a fairly strong sulfuric acid solution; say 50% with about 5% of glycerine added as a fining agent.
Answer:
Explanation:
Nickel electroplating is a technique of electroplating a thin layer of nickel onto a metal object. The nickel layer can be decorative, provide corrosion resistance, wear resistance, or used to build up worn or undersized parts for salvage purposes.Nickel electroplating is a process of depositing nickel onto a metal part. Parts to be plated must be clean and free of dirt, corrosion, and defects before plating can begin.[3] To clean and protect the part during the plating process, a combination of heat treating, cleaning, masking, pickling, and etching may be used.[1] Once the piece has been prepared it is immersed into an electrolyte solution and is used as the cathode. The nickel anode is dissolved into the electrolyte to form nickel ions. The ions travel through the solution and deposit on the cathode
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