What is the reaction happens in porosity test with ferrocyanide?

28 December 2019 0 7K Report

I'm plating copper with nickel (electroless). Then, I'm doing porosity test according to the procedure below. I can't find the exact reactions going on between the ferrocyanide and the copper electrode beneath the nickel plating.

I've found a reaction with copper ions, but I don't understand how it reacts with solid copper (or how copper ions are formed).

2Cu+2(aq)+[Fe(CN)6]4−(aq)↽−−⇀Cu2[Fe(CN)6](s)

thank you in advance!

Porosity test procedure:

Prepare the porosity bath as described in the procedure.

Place double sheet of paper on the table.

Place two glass slides on top of the paper.

Put filter paper on each slide.

Put some of the porosity solution on top of one filter paper with plastic pipette.

Place your electrode on the wet filter paper, and then pour some more porosity solution on top of the electrode.

Place the other filter paper on top, make sure it is wet (if not add some more solution).

Place the second glass slide on the top and wait 20 minutes.

Badges
Science topic

More Shani Katz's questions See All

What will be the best way to test NFkb activation via western blot?

Hi, I have lysate from human macrophages, and I wonder what will be the best way to check the NFKB activation in those cells. I was thinking p-p65 or p-ikkb./ Is that make sense?

18 July 2024 5,214 4 View

Is There a correlation for Calculation of Starting torque in plain spherical bearings?

I've found that there are some coorealations for roller bearings and self aligning ball bearings and some other types. I couldn't find information about plain self lubricating, self aligning...

03 June 2024 8,896 0 View

How freeze/thaw cycles affect virus culture fluid titers?

Hi follow virologists, I'm new to the virology field and I'm eager to understand how freeze/thaw cycles affect virus culture fluid titers. I've noticed that while some viruses show increased...

18 March 2024 5,174 4 View

How to grow intratestinal macrophages in culture?

Hi, Im trying to isolate intratestinal macrophages from mouse lungs, and grow them in culture for a few days, to collect secretome. Does somebody have a good protocol for it? I tried face...

11 May 2022 1,039 3 View

How we can test the traits or quality of an entrepreneur in a controlled environment?

I think, determination is the most influencing trait of an entrepreneur, how we can assess this quality in controlled environment.

06 April 2022 8,224 2 View

Is the Acoustic Monitoring Protocol published somewhere?

I see that Blaiser, K. & Lamb, B. (2012) presented the Acoustic Monitoring Protocol, at the American Speech-Language Hearing Association Convention. Atlanta, Georgia, but is there a...

06 September 2021 5,645 0 View

How do I delete an article that was mistakenly added to a project of mine?

I mistakenly added an article of mine to one of my projects. The article has no relationship or connection to the project. How can I delete the article from the project? Many thanks. Yaacov Katz.

13 August 2020 5,248 3 View

Advice on the use of DREADD mice (hM4Di) to chronically suppress nerve activity ?

Hi all We are planning to use DREADD mice (hM4Di) to chronically suppress (2-6 weeks) the proprioceptive system at the level of the spinal cord and peripheral nerves, then look for our...

02 May 2020 6,239 2 View

Is there a program/code for distinguishing between plants in thermal camera imaging?

My research includes monitoring canopy temperature over time with a thermal FLIR camera. I am looking for a code/program that will help me analyze the videos easily and automatically. For my...

24 February 2020 4,893 3 View

Lactobacillus Reuteri minimal media?

As part of a research i am conducting i plan to analyze how different carbon sources in the growth media of L. reuteri effect the properties of the Supernatant derived from anaerobic growth. My...

15 June 2019 423 2 View

Fabrication of narrow glass capillary (inner diameter 200~500 nm)?

I need a very narrow glass capillary for my research. How can I make a glass capillary with an inner diameter of around 200 to 500 nanometers?

08 August 2024 8,915 0 View

Why do i have a weak plasma and no coating during rf sputtering?

I have been getting a low plasma and no coating while doing rf sputtering of copper doped ZnS using a power of 140 watts and at pressure of 6.5x10-3 Mb.

07 August 2024 4,526 4 View

Is the black sediment consider as sand? If not, how can I filter it out?

Hi researchers! I'm working on soil texture analysis, and the end result for sand is doubtful because there is black sediment appearing after drying, as shown in the figure. Is it considered sand?...

30 July 2024 557 2 View

Addition of EDTA during the synthesis of copper nanoparticles to prevent it from being oxidized?

I've attempted to use this method to synthesize copper nanoparticles. Copper nanoparticles can be synthesised using a variety of precursor materials. CuSO4, distilled water, NaOH, and EDTA are...

28 July 2024 8,027 3 View

Can we isolate microplastic from sludge sample without using vacuum filter..?

isolation of microplastic from sludge sample using centrifugation ..

23 July 2024 6,418 0 View

In kalman filter, it is logical to have the observation variance equale 0 ?

I am working on implementing a Kalman filter integrated with ARMA parameters, as described in the article "Predicting Time Series Using an Automatic New Algorithm of the Kalman Filter"...

12 July 2024 8,116 2 View

How to wash capsule filters (Membrane: polyethersulfone; pore size0.2u/0.45u) after filtration. can I wash by NaOH? if yes, what will be the molarity?

11 July 2024 8,969 1 View

Does the potentiostat have to be in a fume hood when polymerising the PANI?

I will polymerise Aniline on ITO glass WE, using 1M of H2SO4 and a potentiostat. However, I am not sure if I have to do the electrochemical polymerisation inside a hood. Is it necessary? Is the...

10 July 2024 2,937 3 View

How to filter structural variants from WGS/WES data?

Hello everyone! I would appreciate some advice regarding the filtering of structural variants. The variant caller used for discovery-“DELLY or DELLY2”using whole-genome sequencing and Whole...

09 July 2024 498 1 View

Where to source glass rings compatible with cell culture?

Hi all, I am looking glass cilinders that have an open flat bottom and top. Preferably with the inner diameter in the range of 2 cm. It's similar to the ones found on multi-electrode arrays for...

06 July 2024 5,846 1 View