I got a litre of 98% from a chemist friend, I diluted the fk out if it but I can’t remember the ratio. It works a treat. 1 litre is a lifetimes supply.
It’s significantly heavier than water, I mention this because when I first went to pick it up I almost dropped it because I wasn’t expecting the extra weight. Be careful with it, it’s crazy hazardous in it’s concentrated form.
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