
PChemLabTXT | page 605 | https://thedailydialectics.com/pdfs/education/chemistry/p-chem/PChemLabTXT/PChemLabTXT.pdf
Confirming Pages ic 594 Chapter XVIII Vacuum Techniques gar28420_ch18_587-600 Sec1:594 The components of air are chemisorbed on the fresh titanium and are thus permanently fixed by chemical bonds. Noble gases (helium, argon, etc.) are pumped at a much slower rate, as they are only physically…