The Vespiary

The Hive => Newbee Forum => Topic started by: methlab on January 11, 2004, 12:56:00 PM

Title: Black tar after MDP-2P distillation
Post by: methlab on January 11, 2004, 12:56:00 PM

Hi! After BS's wacker i washed it as read. Then i distilled it to obtain MDP2P. After the DCM the MDP2P came over, but a lot (about 150ml !) of black tar was left. After cooling it was nearly impossible to get rid of it, used a lot of aceton and sand to 'wash' it out. What has happened ? Why this much tar ? Did i ran the MM wacker too hot ? I have read that this is not good. Thanx

Title: More information
Post by: abolt on January 11, 2004, 04:44:00 PM

What has happened ? Why this much tar ? Did i ran the MM wacker too hot ? I have read that this is not good. Thanx

What was your distillation temp? What was your Vacuum pressure? What was your source of vacuum?

Title: Add about 30g of NaOH to about 100ml of ...
Post by: Just4Fun on January 12, 2004, 07:10:00 PM

Add about 30g of NaOH to about 100ml of Acetone. Then add about 50ml of water carefully and stir or shake carefully. This sems to clean out that black shit (thick tar) for SWIM.