Laboratory trap for compressed gases treatment

摘要

A laboratory trap for compressed gases treatment by their freezing includes as structural element a glass U-shaped tube (one stage). The trap is multistage and for guaranteeing compactness of trap the stages are assembled in the beam and are submerged for 2/3 of height into the refrigerant in the standard Dewar vessel. The number of stages n makes from 2 to 100, thanks to which gas penetrating each of the stages is alternately cooled and heated to room temperature.