Oxalic acid

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NickNap

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Following forum recommendations for oxalic acid to clean hulls, I've bought 500g (from an uncommunicative supplier on e-bay) - can anyone tell me the mixing proportions and best way to apply it please?

cheers
Nick
 
25 grams to 500cc (half a litre) of water. Mixes better if the water is warmish. Some people advocate wallpaper paste if a thick mix is needed (vertical surfaces). Applications can be repeated for persistent stains. Just brush it on (like paint brush it on that is)
 
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Following forum recommendations for oxalic acid to clean hulls, I've bought 500g (from an uncommunicative supplier on e-bay

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Next time just go into Boots and they will have in next day for around £4.95.
 
As tillergirl says dissolve it in warm water. It is more soluble than 25g/ 500cc. I cannot find a reliable figure but it at least double that possibly as high as 14g in 100cc.
You will find a suggested concentration for wood treatemnt on the AGWoodcare website . You could use higher concentrations, even saturated, for heavy rust stain removal.

Remember it is toxic so store it and any unused solution in labelled plastic or glass containers out of sight and reach of children. Dispose of any used solutions with care also.

You should have been supplied with safety data by your supplier but if not there is a safety sheet on the AGwoodcare website
 
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Next time just go into Boots and they will have in next day for around £4.95.

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Given that you can get oxalic acid from a pharmacy, I am seriously wondering what healing properties it might have.

I'm curious, but also can imagine a situation where a crew member falls ill, or is injured. It would be criminal to have oxalic acid on board, and not use it to treat in the right situation.
 
Brilliant. thanks guys, solution with extras! Now, I can clean my hull on Saturday, and avoid constipation on Sunday as well!!
 
Use Harpic limescale remover instead- very effective, a lot cheaper and less dangerous to all involved, and you can get it anywhere!

Cheers

Sparkie
 
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Use Harpic limescale remover instead- very effective, a lot cheaper and less dangerous to all involved, and you can get it anywhere!


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Contains 9% hydrochloric acid.. Not sure I'd rate it as all that much less dangerous

I must admit though that it will be more effective as a limescale remover than oxalic acid.
 
Aw Man!!!!!

Don't forget that pharmacists also like to be known as "Chemists" as in "Boots the Chemist

Got it?

The cheapest source of oxalic acid is an agricultural pharmacy but if you don't have a cattle market near you, that knowledge is of no use to you."

Steve cronin
 
Re: Aw Man!!!!!

<<The cheapest source of oxalic acid is an agricultural pharmacy but if you don't have a cattle market near you, that knowledge is of no use to you.>>
What do they use it for?
 
"that you can get oxalic acid from a pharmacy, I am seriously wondering what healing properties it might have"

They sell, or used to, hydrochloric acid, not to mention all the ingredients of gunpowder. And before that, arsenic (but never old lace). Of course, as other posts suggest, they weren't called pharmacies then. Or now: when was the last time you heard one so described, other than by themselves and the odd pedant here?

Next you'll be saying that filling stations...gas stations...those places we used to call garages...only sell oil and fuel.
 
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Of course, as other posts suggest, they weren't called pharmacies then. Or now: when was the last time you heard one so described, other than by themselves and the odd pedant here?

Next you'll be saying that filling stations...gas stations...those places we used to call garages...only sell oil and fuel.

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Bit pedantic or what?

I'm getting quite European on my travels and most places call them some kind of derivitive of pharmacy, (derivitive??), so that's a word I sometimes use - and when I use it, it means the same as chemist.

It was only a question, more out of curiosity, but with some potentiall serious applications.

If the answers "no, it doesnt have any healing properties", then that would suffice thank you.

garage, petrol station, sh"t, shyte, all the same to me.
 
A friend tells me he uses (B & Q) patio cleaner- paints it on, goes for a cup of tea, returns and washes it off. Job done.

Any others tried this, any damage to gel coat or teak likely?

It all seems too easy, life isn't like that usually is it?
 
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A friend tells me he uses (B & Q) patio cleaner

[/ QUOTE ] What does it contain? Some I think contain hydrochloric acid. It wont hurt the gel coat.
 
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