Hot Citric Acid Bath

[Onoff]

Is it possible to combine the processes by using a citric acid solution for electrolysis?

Heated maybe by a thermo syphoning solar panel.

 

[ronan]

I think you are all over complicating the process. Mix the acid with the water, i used boiling water from the kettle in the kitchen sit the part in it and leave it there half and hour, then have a look at the part. I stir the mix the odd time and rotate the part. But thats as far as i would go.

 

[Onoff]

I think you are all over complicating the process. Mix the acid with the water, i used boiling water from the kettle in the kitchen sit the part in it and leave it there half and hour, then have a look at the part. I stir the mix the odd time and rotate the part. But thats as far as i would go.

My mind works OT! Tried electrolysis, that works, tried Deox-C & citric acid, they work...bored now!

Got to decide on which process as I want to do the rear cross member off of my MK1 Focus estate. And what to contain it in! Will probably go citric as it gets in everywhere and isn't just line of sight.

 

[indy4x]

Hot caustic baths.

Hot washing soda de greasing.

Hot Citric acid baths.
.

So is it hot caustic to strip paint?

Would you do soda 1st to degrease, then caustic to strip paint and then citric to derust?

 

[ronan]

I doubt caustic would strip automotive paint, oil based paints only i would think.

 

[indy4x]

@ronan not looking to do automotive bits, have some machine stuff I need to degrease, depaint and derust, it's all old, well at least 40yrs old

 

[Turbo]

I just wanted rapid results is why I heated it plus a bit of "just for the Hell of it" as I'd only ever done Deox-C cold. I've used electrolysis too albeit only with a 24vdc 5A supply and washing soda solution. Want to try a big old arc welder!

You can only use a DC supply so an old arc welder is probably not going to work as most are ac!

 

[rtcosic]

You can only use a DC supply so an old arc welder is probably not going to work as most are ac!

Offspring built a solid state rectifier powered by my ancient Clarke buzz box. Used it to electroclean large suspension components in a dustbin.

Put enough ergs in there to raise the temperature above the point you could put your hand in it. Above 50C?

We later put a 30 amp fuse in the circuit. 30 amps at 30 (?) volts? Damn near 1kW of DC power into c. 150 litres of water.

That was the one where it bubbled away at the end of the shed making pure hydrogen filled bubbles at one electrode and pure oxygen filled bubbles at the other.
One of their friends was delegated to dirty cutting jobs at the other end of the shed. We were in the garage. We heard a dull boom and went out to find him emerging from the shed looking very dazed. A spark had traveled the length of the shed and set off the perfect stoichiometric mix of oxygen and hydrogen.

We can still see daylight between the shed roof and the top of the shed wall and the dent where the shed door flung open a full 180 degrees.

He declined the invitation to demonstrate his technique.

I must have told this tale on here at least twice before!

I happened to dig the rectifier out of the shed earlier this week and rebuild it in a new ice cream box as the original had gone brittle and was crumbling away.

 

[The_Yellow_Ardvark]

So is it hot caustic to strip paint?

Would you do soda 1st to degrease, then caustic to strip paint and then citric to derust?

It depends on the job.

This week was hot washing soda to de grease and removal of old oil and grease from a Egg beater drill.

Hot caustic to remove paint from a block plane.




I use what ever to hand to make my tanks, as I am currently out of deep fat fryers.

But do have the elements from a hot water heater. Just the images never look safe.
So not to encourage others I do not post images of how un safe it looks.

 

[minimutly]

Are you trying for a full set?

And I'm surprised you didn't censor that poster in the background before posting - I'm not even going to ask what you were searching for to find that.......

Offspring built a solid state rectifier powered by my ancient Clarke buzz box. Used it to electroclean large suspension components in a dustbin.

Put enough ergs in there to raise the temperature above the point you could put your hand in it. Above 50C?

We later put a 30 amp fuse in the circuit. 30 amps at 30 (?) volts? Damn near 1kW of DC power into c. 150 litres of water.

That was the one where it bubbled away at the end of the shed making pure hydrogen filled bubbles at one electrode and pure oxygen filled bubbles at the other.
One of their friends was delegated to dirty cutting jobs at the other end of the shed. We were in the garage. We heard a dull boom and went out to find him emerging from the shed looking very dazed. A spark had traveled the length of the shed and set off the perfect stoichiometric mix of oxygen and hydrogen.

We can still see daylight between the shed roof and the top of the shed wall and the dent where the shed door flung open a full 180 degrees.

He declined the invitation to demonstrate his technique.

I must have told this tale on here at least twice before!

I happened to dig the rectifier out of the shed earlier this week and rebuild it in a new ice cream box as the original had gone brittle and was crumbling away.

So are you doing some more?

 

[Onoff]

Vintage leather worker's stitch line marker. Hoping the thread will free up:

After half an hour:

Back in as thread still solid.

 

[Wonderweaver]

Vintage leather worker's stitch line marker. Hoping the thread will free up:

View attachment 190186

After half an hour:

View attachment 190188

Back in as thread still solid.

Nice definitely works your method.

 

[Screwdriver]

Nice definitely works your method.

"Your" method?? You mean using citric acid?

I wonder who actually brought the topic into this forum in the first place...

Who could that be??

 

[Wonderweaver]

well he's doing it but if you did it first then

 

[rtcosic]

So are you doing some more?

I have a 100 litre bath 'permanently' set up outside the shed, a 30 litre and a 10 litre. I have an 8.5 amp power supply from a local school clear out and an 8 amp computer power supply and bulb box for current control.

The 30 litre is currently on the garage bench cleaning one of the Fobco Pulleys and the rest of it will go through it or the big jobbie.

Youngest offspring asked for the rectifier as he is in the process of acquiring a 1000litre pallet tank and needs a man sized power supply.

View media item 10414

 

[Onoff]

Nice definitely works your method.

Just riding on the shoulders of giants me.

A question; do other acids like lactic work?

 

[The_Yellow_Ardvark]

@rtcosic I am not that posh.



I make do with what I can acquire.

 

[scottmk1]

I've got a single pan induction hob that I want to use for brewing stuff up before electroplating, but most stainless pan's I've seen say not suitable for use with induction hobs? Any ideas on that? Obviously if I had a free one I'd just find out the easy way.

 

[slim_boy_fat]

@The_Yellow_Ardvark Oxtail soup?

 

[The_Yellow_Ardvark]

@The_Yellow_Ardvark Oxtail soup?

Yes, for the Norberts.