Buchi Rotavapo R-100 Manuel d'utilisateur télécharger pdf (Page 35)

BÜCHILabortechnikAG Operation|6

OperationManualRotavapor®R100 35/60

6.2.3 Optimizationdistillation

Dependingonthesolventinvolved,itmayalsobepossibletofurtheroptimizethedis

tillationprocess.Thedistillationshouldalwaysbesetupsothatthecondensatedoes

notcovermorethanthreequartersofthecoilinthecondenser.Thetopquartershould

remainexposed.

WARNING

Riskofexplosionfromexcessiveinternalpressure

Theevaporatingflaskand/orthecondensercouldexplodeiftheinternalpressurepro

ducedbyevaporationbecomestoogreat.

u Makesurethattheinternalpressureinsidetheglasscomponentsisnevergreater

thanatmosphericpressure.

Ifthecondensationisbelow3/4ofthecondenser:

u increasethevacuum.

Thatwilllowertheboilingpointandmorevaporwillenterthecondenser.

u Inapplicationswherenovacuumisapplied,raisethetemperatureoftheheating

bathifnecessary.

Thatwillcausemoresolventtoevaporate.

Ifthecondensationisabove3/4ofthecondenser:

u decreasethevacuum.

Thatwillraisetheboilingpointandlessvaporwillenterthecondenser.

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Buchi Rotavapo R-100 Manuel d'utilisateur Page 35