PChemLabTXT_page_708

PChemLabTXT | page 708 | https://thedailydialectics.com/pdfs/education/chemistry/p-chem/PChemLabTXT/PChemLabTXT.pdf

ic Confirming Pages Safety 697 the trap) and air at a total pressure of 1 atm has an oxygen partial pressure of 179 Torr. Thus, if an appreciable quantity of air were pumped through a cold trap, liquid oxygen could accumulate. Do not refrigerate a trap with liquid nitrogen until the system pressure…