Table 2.

Solubility of tris(hydroxymethyl)aminomethane in water-methanol mixtures at 15, 25, and 35 °C

Wt percent methanol	15 °C		25 °C		35 °C
	S	σ	S	σ	S	σ
0	4.593	0.001	5.780	0.008	7.261	0.004
10	3.940	.001	5.092	.003	6.550	.010
20	3.363	.002	4.450	.010	5.827	.003
30	2.845	.004	3.821	.027	5.087	.003
40	2.382	.004	3.223	.027	4.366	.003
50	1.920	.005	2.622	.002	3.610	.004
60	1.455	.001	2.009	.011	2.813	.001
70	1.022	.001	1.440	.003	2.503	.006
80	0.6727	.0007	0.9359	.0007	1.356	.008
90	.3700	.0003	.5368	.0006	0.8443	.0021
100	.2186	.0001	.2918	.0007	.4266	.0007

S = solubility in moles per kilogram of solvent.

σ = standard deviation.