> from website:Borax (from Persian burah), also known as sodium borate, sodium tetraborate, or disodium tetraborate, is an important boron compound, a mineral, and a salt of boric acid.
"Borax" and "Boric acid" are not the same.
Borax is Na2B4O7-10H2O, Hydrated sodium borate
Boric acid is H3BO3
I have heard of people using boric acid but not Borax.