The reason it takes 5kg of helional for 1kg of product is because it is actually a 2kg synthesis, I just don't advertise it that way. I have a special method of doing the last step which 50% of your yields comes out super pure with no acid/base extraction or distillation, and the other 50% is stuck in a hard to clean tar. So you actually get twice the amount but only half is advertised because its so easy, the other half requires more steps. Chlorox bleach is very low concentration, so you need a lot of it. Considering 5L is like 2$ its not really a big deal. Motek: By SO3 I ment PO3, remember earlier in this thread where you kept calling me out for taking about "PO3" when I never even mentioned it? And you made like 100 posts talking about how I wont answer your questions about PO3? You need to go re-read your posts and realize that nobody here is taking you seriously.