Has anyone experimented with this? I'm sure I've seen it mentioned somewhere online, but can't find it now.. I saw a tub of it for £1.99 in Wilko's today ("Oxo-sure" or something, I'll get more details tomorrow), I didn't have any money on me but might pick some up tomorrow. It was a 2:3 ratio, but I can't remember which way round... At least, it said it was Na2CO3:H2O2 in a 2:3/3:2 ratio, but could be a compound I guess.
Seems to me that if you just add a little more acid to a primary peroxide synth then the H2O2 would be liberated for the reaction. Or it may have other uses, eg peracid production for oxidations, after you get rid of the carbonate.
Also, is this what is known as sodium percarbonate?
Sorry, I'm not really thinking, just posting a stream of consciousness here, as it comes into my head.
Well, it seems like interesting stuff to me, so I thought I'd make a topic for it. If you have experience with it, post. I'll pick some up tomorrow or this weekend and have a play with it.

Yes, of course. It's a main component of many non-chlorine bleaches. IIRC its formula is Na2CO3 * 1.5H2O2 * H2O. Probably it is a cheapest raw for AP (acetone + percarbonate bleach + battery acid). But it gives a lot of foam with acid so it should be dissolved in little portions. And, of course, AP obtained by this method should be washed VERY good.

Maybe another way:
A few weeks ago I have heard that 2l 10% pure percarbonate solotion, 300ml 20% HCL and 300ml or less Aceton will form after 4 days about 70g pure DPPP (after recrystallising).

Then I have mixed 1l bleach ("Ace - Milde Bleiche", contains 5-15% oxygen based bleach) with 200ml Aceton and 250ml 24%HCL in a 5l canister.
After 3-4 Days i had 36.8g (after recrystallising) of a white explosive powder with a very, very low density. Maybe it's pure DPPP but I'm thinking it's AP!

I remember seeing a thread in the chemistry related section about Sodium Percarbonate, I think it was saying the same thing.