I was thinking of vacuum distilling sulfuric acid. It's bp would come down to about 170C with my pump, which is pretty feasible compared to the ntp of
340C and I could use paraffin wax bath to heat it.
This is another option to buying it, but I need only pretty small amount and buying it would warrant a full 25L canister because the price of 1 liter,
5 liter and 25 liter are in the range of 30, 80 and 200 euros. |