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Recovery Factor for volatile acids distillation
Ms. Guided
Posted: Friday, July 19, 2013 3:15 PM
Joined: 7/19/2013
Posts: 1


I have a new distillation apparatus that distills much more slowly than my last one. The new one distills at 2.6 mLs/minute, slower than SM suggests (about 5.0 mLs/minute). My old system distilled at 4.6 mLs/min. But it seems to me that with the right recovery factor, this should be accounted for. I have calculated a new recovery factor for this apparatus, but my results between the new system and the old system are wildly different. (250 mg/L new system, 111 mg/L old system).

 

Is the recovery factor simply mLs NaOH used to titrate a distilled standard  divided by mLs NaOH to distill a non-distilled standard? I'm getting about 0.7.

 

Thank you.