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Nitrogen flasks, round bottom / Schlenk Flasks DURAN

Borosilicate glass 3.3 clear, with conical ground joint, NS stopcock (bore 2,5 mm) and inscription label.Very good chemical resistance High temperature resistance Minimal thermal expansion giving relatively high resistance to temperature changes 

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Gas washing bottles acc. to Drechsel

Borosilicate glass 3.3 (bottle) / DURAN tubing (head) Consists of the gas washing bottle with NS 29/32 standard ground joint socket and the insert with NS 29/32 cone joint and two glass tubing connectors with 11 mm external diameter.Available with or without sintered glass disc, porosity grade ...

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Gas washing bottle head acc. Drechsel alone

Acc. to DIN 12596, with cone NS 29/32, for bottles acc. to DIN 12463,made of DURAN tubing.

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