Table 4.

Solubility of DCPD at 25 °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.
0.101	7.580	0.760	0.847	1.02	2.98	3.00
.503	6.775	1.03	1.49	1.05	2.89	2.92
1.02	6.330	1.41	2.42	1.00	2.75	2.78
2.98	5.583	3.27	6.21	1.01	2.84	2.90
4.91	5.184	5.19	10.2	0.978	2.70	2.78
9.70	4.728	10.1	19.9	.985	2.98	3.10
19.7	4.221	19.7	39.1	1.01	2.84	3.00
49.5	3.652	47.2	97.6	.983	3.29	3.44