Excellent reply there mate thanks alot just wanted to verify everything before ordering. i will be using the dmt hand book for refrence to make my changa 

  im unsure of how to find out what the .5% is in the acetone, should i post a message on ebay asking the seller? thanks alot for the link as well mate 

Also would it make any diffrence if i used Isopropyl Alcohol as they sell 99.9% pure? 
this is what the Isopropyl Alcohol contains :-
Product Specification: 
Minimum Assay: 99.9% min
Water: 0.1% max
Acidity as CH3COOH: 0.001 max
Density: 0.784 โ 0-786
Litres per Metric Tonne: 1274
Appearance: Clear and free from suspended matter
Colour: 10 max
Initial Boiling Point: 82.0
Final Boiling Point: 83.0
Refractive Index ND 20: 1.377 
Non Volatile Matter: <1
would this be a ok alternative to the acetone? 
Thanks 
HydroBlowBack 

"And then came me the destructive teen with a handfull of bars and a mind full of dreams"