SALMO and S₃M: A Saliva Model and a Single Saliva Salt Model for Equilibrium Studies

Table 4

Stability constants of SALMO species at = 25, 30, 37, and 40°C and ionic strength (by (11)).

ID	Species^(a)
		= 25°C	= 30°C	= 37°C	= 40°C
1	(OH)	−13.82	−13.66	−13.45	−13.36
2	(Na)(OH)	−13.59	−13.45	−13.25	−13.17
3	(K)(OH)	−13.65	−13.53	−13.35	−13.28
4	(Ca)(OH)	−12.87	−12.74	−12.56	−12.49
5	(Mg)(OH)	−11.73	−11.61	−11.45	−11.38
6	(NH4)(OH)	−9.26	−9.10	−8.90	−8.82
7	(SCN)(H)	−1.66	−1.51	−1.29	−1.20
8	(Na)(SCN)	−0.52	−0.52	−0.51	−0.51
9	(K)(SCN)	−0.50	−0.50	−0.49	−0.49
10	(Mg)(SCN)	−1.20	−1.19	−1.19	−1.19
11	(Ca)(SCN)	−1.20	−1.19	−1.19	−1.19
12	(NH4)(SCN)	−0.52	−0.52	−0.51	−0.51
13	(F)(H)	2.96	2.99	3.05	3.07
14	(F)2(H)	3.52	3.53	3.55	3.56
15	(Na)(F)	−0.60	−0.56	−0.51	−0.49
16	(K)(F)	−0.58	−0.54	−0.49	−0.47
17	(Mg)(F)	1.28	1.31	1.36	1.39
18	(Ca)(F)	0.67	0.71	0.76	0.79
19	(NH4)(F)	−0.60	−0.56	−0.51	−0.49
20	(Na)(Cl)	−0.46	−0.48	−0.51	−0.53
21	(K)(Cl)	−0.46	−0.48	−0.49	−0.50
22	(Mg)(Cl)	0.12	0.14	0.15	0.16
23	(Ca)(Cl)	−0.03	−0.02	0.00	0.01
24	(NH4)(Cl)	−0.48	−0.50	−0.51	−0.52
25	(SO4)(H)	1.64	1.71	1.79	1.83
26	(Na)(SO4)	0.38	0.38	0.39	0.39
27	(K)(SO4)	0.50	0.51	0.52	0.53
28	(Mg)(SO4)	1.61	1.63	1.65	1.66
29	(Ca)(SO4)	1.55	1.57	1.60	1.61
30	(NH4)(SO4)	0.91	0.92	0.92	0.92
31	(PO4)(H)	11.84	11.76	11.65	11.60
32	(PO4)(H)2	18.70	18.60	18.48	18.43
33	(PO4)(H)3	20.23	20.16	20.06	20.02
34	(Na)(PO4)	0.91	0.93	0.96	0.97
35	(Na)(PO4)(H)	12.54	12.49	12.42	12.39
36	(Na)(PO4)(H)2	18.80	18.76	18.70	18.68
37	(Na)2(PO4)	1.70	1.73	1.76	1.77
38	(Na)2(PO4)(H)	12.25	12.20	12.14	12.11
39	(K)(PO4)	0.81	0.83	0.86	0.87
40	(K)(PO4)(H)	12.33	12.28	12.23	12.21
41	(K)(PO4)(H)2	18.68	18.60	18.50	18.46
42	(K)2(PO4)	1.35	1.37	1.40	1.41
43	(K)2(PO4)(H)	12.26	12.22	12.17	12.15
44	(Ca)(PO4)(H)	13.70	13.66	13.59	13.57
45	(Ca)(PO4)(H)2	19.69	19.63	19.55	19.52
46	(Mg)(PO4)(H)	13.84	13.80	13.73	13.71
47	(Mg)(PO4)(H)2	19.82	19.76	19.68	19.65
48	(NH4)(PO4)	0.91	0.93	0.96	0.97
49	(NH4)(PO4)(H)	12.60	12.55	12.48	12.45
50	(NH4)(PO4)(H)2	18.80	18.76	18.70	18.68
51	(NH4)2(PO4)	1.71	1.73	1.76	1.77
52	(NH4)2(PO4)(H)	12.23	12.19	12.14	12.12
53	(Na)(K)(PO4)	1.89	1.91	1.94	1.95
54	(Na)(NH4)(PO4)	2.06	2.08	2.11	2.12
55	(K)(NH4)(PO4)	1.89	1.91	1.94	1.95
56	(Na)(K)(PO4)(H)	12.37	12.41	12.46	12.48
57	(Na)(NH4)(PO4)(H)	12.35	12.39	12.44	12.46
58	(K)(NH4)(PO4)(H)	12.37	12.41	12.46	12.48
59	(AA)(H)	9.58	9.45	9.28	9.21
60	(AA)(H)2	11.64	11.63	11.62	11.61
61	(Na)(AA)	−0.68	−0.68	−0.68	−0.68
62	(Na)(AA)(H)	9.04	8.91	8.74	8.67
63	(K)(AA)	−0.68	−0.68	−0.68	−0.67
64	(K)(AA)(H)	9.04	8.91	8.74	8.67
65	(NH4)(AA)	−0.68	−0.68	−0.68	−0.67
66	(NH4)(AA)(H)	9.04	8.91	8.74	8.67
67	(Mg)(AA)	1.49	1.57	1.67	1.71
68	(Mg)(AA)(H)	9.61	9.66	9.74	9.77
69	(Ca)(AA)	1.00	0.99	0.97	0.97
70	(Ca)(AA)(H)	9.70	9.72	9.75	9.76
71	(SO4)(AA)(H)	10.56	10.44	10.28	10.21
72	(Cl)(AA)(H)	11.27	11.15	10.98	10.91
73	(F)(AA)(H)	11.47	11.34	11.18	11.11
74	(SCN)(AA)(H)	11.27	11.15	10.98	10.91
75	(CO3)(H)	9.95	9.91	9.85	9.83
76	(CO3)(H)2	16.13	16.06	15.97	15.93
77	(Na)(CO3)	0.79	0.80	0.80	0.80
78	(Na)(CO3)(H)	9.96	9.92	9.87	9.85
79	(K)(CO3)	0.58	0.59	0.61	0.62
80	(K)(CO3)(H)	9.86	9.83	9.79	9.77
81	(Ca)(CO3)	2.46	2.50	2.56	2.58
82	(Ca)(CO3)(H)	10.83	10.84	10.86	10.87
83	(Mg)(CO3)	2.15	2.18	2.22	2.24
84	(Mg)(CO3)(H)	10.63	10.60	10.56	10.54
85	(NH4)(CO3)	0.79	0.80	0.80	0.80
86	(NH4)(CO3)(H)	9.96	9.92	9.87	9.85
87	(Urea)(H)	0.17	0.16	0.14	0.13
88	(Urea)2(H)	−0.55	−0.56	−0.57	−0.57
89	(Ca)(Urea)	−0.81	−0.80	−0.80	−0.80
90	(Mg)(Urea)	−0.31	−0.30	−0.30	−0.30
91	(SO4)(Urea)(H)	0.96	1.02	1.11	1.15
92	(PO4)(Urea)(H)2	17.69	17.60	17.48	17.43
93	(PO4)(Urea)(H)3	20.35	20.28	20.18	20.14

Charges omitted for simplicity; ^(b)±0.01 − 0.1 standard deviation.