Ionode IJ pH V5.1 - Manual (Page 24)

Ionode IJ Instruction Manual 24
Table 2: pH Values of Standard Buffers at
Various Temperatures
T
emp
er
atu
re (T
)
0.0
5
M
p
o
tas
s
ium
h
ydrog
en p
h
th
ala
te
0.0
2
5M
K
H
2
PO
4
0.0
2
5M
N
a
2
H
P
O
4
IUP
AC
p
H 7.
00
0
0.0
0
87
M
KH
2
PO
4
0.0
3
M Na
2
HP
O
4
0.0
1
M bo
ra
x
0.0
2
5M
N
aHCO
3
0.0
2
5M
N
a
2
CO
3
T
ris
b
u
ff
er
0 4.003 6.984 7.118 7.534 9.464 10.32 8.40
5 3.999 6.951 7.087 7.500 9.395 10.25
10 3.998 6.923 7.059 7.472 9.332 10.18 8.08
15 3.999 6.900 7.036 7.448 9.276 10.12
20 4.002 6.881 7.016 7.429 9.225 10.06 7.79
25 4.008 6.865 7.000 7.413 9.180 10.01 7.65
30 4.015 6.853 6.987 7.400 9.139 9.97 7.51
35 4.024 6.844 6.977 7.389 9.93 9.9.
40 4.035 6.838 6.970 7.380 9.068 9.89