Can my sample be contaminated by grease on a rotary evaporator?

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Using grease on the ground glass joint of a rotary evaporator can potentially contaminate the sample if it comes into contact with the solvent. The grease may leach into the butanol during evaporation, affecting the purity of the sample. Proper cleaning and using grease sparingly can mitigate this risk. Ensuring that the joint is secure and that the grease does not enter the flask is crucial. Contamination from grease is a valid concern and should be addressed to maintain sample integrity.
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Homework Statement



Before, I started to evaporate my solvent (butanol) by using rotary evaporator, I greased the ground glass joint holding my flask and bump trapper. Subsequently, I secured my flask sample and the trapper with Keck clip . Is there any possibility that my sample may have been contaminated by grease?

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Cyrus the great said:
using rotary evaporator
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