//CDMS		H3O+
//Temp (K)	log(Z)
1.000	0.7787
3.000	0.8475
6.000	0.9796
9.375	1.0641
18.75	1.2016
37.50	1.4262
75.00	1.7968
150.0	2.2412
225.0	2.5147
300.0	2.7160