Modified Schlenk Tube Flasks provided by STE-Mart are available with 2mm glass stopcock, 2mm PTFE stopcock, or 0-4mm high vacuum valve. The vacuum of glass stopcock are higher than that of PTFE stopcock. The high vacuum valve offers the highest vacuum level.
Thick wall with uniform thickness Durable Great thermal conductivity and shock resistance Bottom of flask shaped to fit spherical heating mantles The modified Kjeldahl shape facilitates heating,stirring and stripping of solvent while maintain the ease of transfer of liquids and solids