[lizardman94]

I'm guessing this is the right place to ask since it's a basic question, so...

If I add some small amount of NaOH (sodium hydroxide) to water and then neutralize the pH of it with sodium bisulfate then is it safe to touch? And what will happen to these chemicals when they are brought to about 570 degrees and given up to 150 psi?

[cseil]

Of course it is safe to touch. You'll have just water and a little bit of Na₂SO₄
NaOH + NaHSO₄ => Na₂SO₄ + H2O

NaOH melts at 318°C so you'll find it as liquid.
NaHSO4 melts at 315°C so it's the same.

I don't know what happens at 10atm, actually.

[Borek]

After heating they are definitely no longer safe to touch, but I guess you already know it.

What is the critical point of water? What is the decomposition temperature for Na₂SO₄?

[lizardman94]

Forgive me, I meant 570 degrees Farenheit, is there any way to remove them from the water (and crude oil which was algae before) after being heated and pressurized in this enclosed space?