After reading through a number of threads where people have been asking for chemicals, I propose a chemical swap (non hazardous), between people via the post. Lets hope Royal mail dont send down the terrorist squad...., so to start of anybody fancy a few grams of KNO3?

This technique of swapping has worked time and time again for plants etc, and has provided much interest, so lets give it ago eh?

Sounds like a great idea to me, I'll be back with a few things.

Its true if you want to get anything you have to buy huge amounts or as been said spend so much.

Lets see hwo this goes.

I've got some barium carbonate and some iron oxide, I tried to sell some on ebay as its just sitting there but no luck.

i also have a lot of copper carbonate