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zinc electroplating

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tinsnano

tinsnano

Industrial
Joined
Jan 3, 2015
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62
Location
ET
Hi guys, i want to plate zinc on iron (functional plate). i have used zinc sulphate solution and the part to be plated and graphite rod. as a brightener i used sugar. but the result i got is not as bright as i expected.
any help please
 
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tinsnano,

See Lowenheim, Frederick A. "Electroplating. Fundamentals of Surface Finishing," McGraw-Hill Book Co., New York, 1978. pp.180-182. (ISBN: 0-07-038836-9)

It seems that you may be missing an additive or the pH might be too high.

HIH

dogtop
 
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i am trying to have free download of the book (but i cant). but what kind of additive should i use and the pH should be what?
 
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Can you provide more information about the plating conditions? Such as temperature, pressure, concentrations of components, pH, plating voltage, etc.
 
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pH=2
concentration 26gm ZnSO4 with 200gm water
temperature room temperature around 23C
pressure atmospheric pressure
plating voltage 20V
 
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unfortunately i live in Ethiopia, here we don't have internet payment system.any ways i really thank you
 
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