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Current best place for phosphoric acid?
28-01-2020, 09:37 PM
Post: #1
Current best place for phosphoric acid?
I had some. I got the containers mixed up. And wondered why the water i was tipping down the drain seemed thick... : (


Thank you.

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28-01-2020, 10:39 PM
Post: #2
RE: Current best place for phosphoric acid?
Some years ago I bought a gallon plastic container of it from an agricultural supplier. It was labelled as milk stone remover and used diluted to pump round milk pipelines in milking parlours.
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29-01-2020, 11:11 AM
Post: #3
RE: Current best place for phosphoric acid?
I have some, can bring it down to the bbb?

Location York.
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De-meth, water wash and dry to <200ppm.
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29-01-2020, 11:30 PM
Post: #4
RE: Current best place for phosphoric acid?
Yes, I also found 'milk stone remover' was the clue to a cheap supply, if one lives near Ag. suppliers.
Which I don't. Was after it for rust removal a few years back.

Location: N.E. London.
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30-01-2020, 01:33 AM
Post: #5
RE: Current best place for phosphoric acid?
Thank you.

eBay comes up with 85% at about £20 for 2.5l delivered, or there's this locally -

http://m.molevalleyfarmers.com/h5/r/mole...emover-20l

Not much more than a pound a litre, but the datasheet says something like 15-30%, so it's a lot weaker.

But I don't really know what strength I need. I'm looking to clean up a chassis that is still attatched to the truck. Does not need to be spotless, but I want a resonable result else I'd do better saving my time and money.

Thanks for the offer, dgs, but I'm on a time scale thats hopefully less than 6 months away from completion.

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30-01-2020, 10:22 AM
Post: #6
RE: Current best place for phosphoric acid?
The 85% is the better deal and you can experiment with dilution.
I think you'll need at least 50% or it'll take forever.
Let us know your findings.

Location: N.E. London.
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