C!. R. SINGLETERRY AND LORRAINE ARKIN WRINRERGER
4574
EQUILIBRIUM CONSTANT K s
OF
Vol. 7 3
TABLE IV EQT'ATION (19) 4I' 23", IONICSrRENGTII APPROXIMATELY ONE id of thio-
Components added R1SSR.i NazSOa M M
2.08 x 1.04 x 1.04 x 2.08 x 1.04 x 2.08 x 1.04 x 1.04 1 n4
x x
10-3 10-3 10-3 10-3 10-3 10-3 10-3 10-3 10-8
0.05 .10 .05 .05 .0125 ,0125 ,1025 ,028 ,0063
Buffer
NHa, M NHICI 0 4 M "8, 0.4 KHaC1, 0 3 11 KC1 0 5 M "3, 0.5 L2.r XH4C1, 0 3 M KCI 0 1 M NHa, M SHdCI 0.1 ilf h " 3 , M NHdCI 0 1 Ai' Nt12HP04, 0.01 31 Sc H?POI, 0 65 il.I KCl 0 08 Jf Sa2HP04,0 01 1 .1 SJHLPOI,0 71 iM KCl 0 05 Jf Na2HPOI,0 0ij 3 L SaH2P04,0 73 -11 KCI 0 05 X SanHPOa, 0 05 If SnH?P04, 0 78 If KC1
SO3- and partly as HS03-. It is possible to calculate the equilibrium constants for the RISSR1sulfite system. a1
RiSSRi
+ SOd
-+ b
+-- R,S-
1) bhi + R,SSO,-, K, = aid I
(19) (1 I
R , SIZi
+
- + a HSOj- + RiSH
+ RiSSO,-,Kv bl
=
bit (1,C
"0 1
Denoting the dissociation constant of the sulfhydryl group of thioglycolic acid as I
