DURAN® Dropping Funnel, With Pressure Equalisation Tube, Cylindrical, With Graduated Scale And Ground Joints, Cone NS 29/32, 500ml, DWK Life Science (CAT#: STEM-F-0544-LC)

DURAN® Dropping Funnel, With Pressure Equalisation Tube manufactured by DWK Life Science is made from 3.3 expansion borosilicate glass. DURAN® Dropping Funnel features double graduated scale to show the approximate volume of liquid in the funnel or the volume dispensed from the funnel. The ground cone joint on the lower end allows an accurate connection to other ground jointed items such as multi-neck flasks. The narrow-bore glass tube between the bulb of the funnel and the ground glass joint around the stem replaces the liquid volume lost in the bulb with the equivalent gas volume from the receiving flask, allowing the air-sensitive reagents to continuously flow into a sealed receiving flask.

Capacity (mL): 500
Height h (mm): 430
Socket Size: 29/32
Graduation Intervals (mL): 10
Quantity: 1

Complies with DIN ISO 4800 Type 4
With solid glass stopcock key and plastic retaining device
Fired-on, highly durable white print
Tight closure due to standard ground joints