How does evaporation from a vial with a pre-slit septum compare with that from a vial without a pre-slit septum? - WKB125442
Article number: 125442
ENVIRONMENT
- Vials
ANSWER
EVAPORATION INFORMATION—Pre-slit vs. Non-slit
Using 100% acetone at 20 °C results in about 0.2% evaporation over three days with a non-slit cap and 2.2% with a pre-slit cap. The evaporation after two hours is negligible. Chlorinated solvents will be much higher, but we don’t have data. This rises to 1.5% and 3.2% respectively when the septum is pierced.
ADDITIONAL INFORMATION
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