Eisco Dropping Funnels with PTFE Stopcock, Open Top
Supplier: Wards
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About this item
Borosilicate glass dropping funnels with PTFE stopcocks and open tops, ideal for basic extractions.
- Cylindrical ungraduated glass dropping funnel
- Made of durable, high quality borosilicate 3.3 glass which withstands high temperatures and thermal shocks
- Open top for easily adding liquids
- Fitted with a PTFE key stopcock
- Used for extractions or to dispense liquids into a system slowly (drop-wise)
Autoclavable, with superior chemical durability. Low temperature gradient - can withstand high temperatures and thermal shocks.
Eisco Labs borosilicate glass has the following heat tolerances:
- Strain point 515 °C
- Annealing point 565 °C
- Softening point 820 °C
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