Table 2.

Solubility of DCPD at 5 °C<p>Unadjusted quantities

Initial acid, P0M ×103	Composition of equil. solns.			$\frac{\text{Ca}}{\text{P}-{\text{P}}_0}$	$K_{DC}^{\text{'}}\times {10}^7$
	pH	Ca M× 103	P M× 103		Davies	D.-H.
0.0979	7.642	0.755	0.843	1.01	2.96	2.98
.490	6.878	1.00	1.49	1.00	2.95	2.97
.987	6.400	1.41	2.44	0.969	2.74	2.77
2.94	5.668	3.18	6.12	.999	2.81	2.86
4.83	5.255	5.13	9.92	1.01	2.60	2.66
9.78	4.738.	9.95	19.6	1.01	2.53	2.63
10.1	4.713	10.3	20.4	1.00	2.56	2.66
19.7	4.275	19.6	39.3	0.999	2.75	2.90
49.5	3.720	47.2	96.8	0.997	3.33	3.46