Homework 02

2. From Table 1. Consider the following:

Zeolite	Unit Cell composition	Secondary Building Unit	Largest Window Size (Å)
ZSM-23	Nan[AlnSi24-nO48].4H2O, n<2.5	complex 5-1	5.5x5.9
gmelinite	(Na2,Ca)4[Al8Si16O48].24H2O	S6R, D6R, S4R, S8R	7.0x7.0
ZK-5	Na30[Al30Si66O192].98H2O	S6R, D6R, S4R, S8R	3.9x3.9

2.1 Match the unit cell showing above to the zeolite listed in Table 1 and indicate number of T-atoms in the largest pore aperture (windows) (Unit cell represented by dot-line)

Unit Cell	Zeolite	T-ring
A
B
C

2.2 Which zeolite possess the lowest polarity, why?