August 19, 2019, 09:22:45 AM
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Topic: pH Buffer for EN bath  (Read 457 times)

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Offline pcm81

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pH Buffer for EN bath
« on: March 08, 2019, 02:07:43 PM »
I've been doing some electroless nickel plating at home in the last couple of years. The bath i settled on using is:
30g NiCl
10g Sodium hypo phosphate
12.6g sodium citrate
5g sodium acetate

all per liter of DI water.

The bath runs at 100 degrees C and pH between 4 and 6.
I am wondering what would be a good pH 4 ish buffer to use to have least impact on baths chemistry. So far i've been using pH Down/Up solutions from hydroponics set. Anyhow, looking to replace it with a proper pH 4-ish buffer which would not have negative impact on EN chemistry.

Any suggestions are greatly appreciated.

Offline mpprogram6771

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Re: pH Buffer for EN bath
« Reply #1 on: March 26, 2019, 03:00:58 PM »
I enjoy nickel plating as well, and your question makes me curious. I don't have a good answer off of the top of my head, but it's a great question and I'll have fun looking for an answer. I'll ask around and let you know if I find a good buffer. Thanks!

Mpprogram6771

Offline pcm81

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Re: pH Buffer for EN bath
« Reply #2 on: April 22, 2019, 02:40:56 PM »
I enjoy nickel plating as well, and your question makes me curious. I don't have a good answer off of the top of my head, but it's a great question and I'll have fun looking for an answer. I'll ask around and let you know if I find a good buffer. Thanks!

Mpprogram6771
Thank you. Looking forward to learning more about what you will find.

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