How to dispose of sulphuric acid?

[andyb28]

I purchased a new battery for my jetski and it was the kind where you have to fill the cells yourself.

There is some left, not a huge amount, but I am pretty sure I shouldn't be putting it out with the rubbush. I have read that its good as a drain unblocker, so is it ok to pour it into my gardens manhole drain and flush it down with water?

If not, what would you suggest is the best way to get rid of it?

[jmorgan]

Anyone you want t get rid of first.........

[andyb28]

Just have to make sure its no one with kidney stones?

[brrapp]

From what I remember from schoolboy chemistry, pH is a logarithmic scale so take battery acid (about pH 1) to the same level as Coke (about pH 3), you would have to dilute 100:1. I'd think that would be ok to pour down your drains.

[s p a c e m a n]

Got any brickwork you need to clean, patio or something?

[MX5_Nuts]

https://www.google.co.uk/search?q=sulphuric+acid&a...

[Ashtray83]

I use one shot drain cleaner at work that's 91% sulphuric acid and clears blocked wastes a treat so I'd just wash it down the sink but be warned use a funnel and don't get it On any metal work as it will go black

[Blaster72]

If it's to fill a battery it'll already be around 35% acid to 65% water mix approx. Check the label.

If that is the case, why not just keep it in the shed or garage in case you need to top up the battery in future?

[Joe M]

Make sure you haven't put bleach in the sink before you pour it away, they react and give off chlorine gas.

[Simpo Two]

It's nasty stuff. Either keep it carefully for future use, or, if you don't want to ring the Council and have to pay £2,000 for a team of 10 people in NBS suits to take it away, find a patch of soil you don't want and let it burn itself out there.

[grumpyscot]

Ashtray83 said:

I use one shot drain cleaner at work that's 91% sulphuric acid and clears blocked wastes a treat so I'd just wash it down the sink but be warned use a funnel and don't get it On any metal work as it will go black

Metal work as in the sink / drain components?

You'd be better off just pouring it down a street drain....... in the hours of darkness, of course!

[Hugo a Gogo]

mix in a load of sodium bicarb/baking soda

(d'oh, google said that too - well, it's correct)

[Evoquative]

grumpyscot said:

Metal work as in the sink / drain components?

You'd be better off just pouring it down a street drain....... in the hours of darkness, of course!

Definitely don't do this, some street drains go direct into a river. This kind of thing is exactly what gets effective forms of chemicals banned for domestic use, inconsiderate use.