Glass Round Bottom Schlenk Flask with A Standard Taper Joint and High Vacuum Valve Laboy glass separatory funnel High vacuum hollow glass stopcocks:

High vacuum hollow glass stopcocks: The 4mm high vacuum double oblique hollow glass stopcock precision ground with corresponding numbers on barrels and plug

they are prevented from entering the vacuum system and causing problems

or other items

and the vacuum trap prevents contamination of the system

Glass Round Bottom Schlenk Flask with A Standard Taper Joint and High Vacuum Valve Laboy glass separatory funnel High vacuum hollow glass stopcocks:Design: The Schlenk Flask is a laboratory glassware designed for use in air sensitive reactions. It is a round bottom flask with a standard taper joint and a 0 4mm high vacuum valve. Function: The Schlenk Flask is commonly used for air sensitive reactions, as it allows for the manipulation of the reaction environment without exposing it to air. The standard taper joint allows for easy attachment of a variety of laboratory equipment such as condensers,