Standard (master) isotherms of alumina, magnesia, titania and controlled-pore glass

Standard (master) nitrogen and argon (at 77 K) and argon (at 87 K) isotherms on non-porous alumina, titania, magnesia and controlled-pore glass (CPG) were obtained. The absence of pores in these materials was controlled and confirmed. Reproducibility and accuracy of adsorption measurements were affirmed by replicated adsorption runs. α(x) and t(x) dependences were constructed for nitrogen and argon at 77 K and argon at 87 K.