Quote Originally Posted by Rudeofus View Post
Let's all agree that those who make Sodium Sulfite commercially usually don't resort to APUG for instructions ...
And your point is ?

On a smaller scale it's still an easy way to make concentrated Sulphite solutions, and to overcome Geralds comments about heat and spalttering you carry out the addition of the hydroxide slowly.

It's not rocket science and quite similar to making your own Sodium Metaborate (Kodalk) from Borax and Sodium Hydroxide which was quite normal outside the US where Metaborate was always harder to get hold of.