It is commonly contaminated with grease and oil.
The 9600-90 is a good choice for recycling Freon waste. Key features are:
Recycling Program: 9600-90 Spinning Band Distillation System
|Cut #1 (waste)||Timed fore cut: 30 minutes|
|Cut #2 (Pure Freon)||47.0 – 48.0 °C|
|Typical Distillation Rate||1.0 liters per hour|
|Typical Recovery||95% Recovered|
|Typical Purity||HPLC or Pesticide Grade|