Citrate

Useful Range
pKa1 pH 2.20 - 6.50
pKa2 pH 3.00 - 6.20
pKa3 pH 5.50 - 7.20
Note

Binds some proteins and metals
Wikipedia Entry
Citric acid
pKa vs. Temperature
4°C 20°C 25°C 37°C
pKa1 3.13
pKa2 4.79 4.77 4.76 4.74
pKa3 6.40
d(pKa2)/dT
-0.0016
d(pKa3)/dT
0.0000
Ingredients with this Buffer
1 Ammonium Citrate Dibasic, 2.5 M
2 Calcium Citrate Tribasic Tetrahydrate(solid)
3 Citric Acid pH 3.0, 1 M
4 Lithium Citrate Tribasic, 1 M
5 Potassium Citrate Tribasic, 1 M
6 Sodium Citrate pH 7.0, 0.75 M
7 Sodium Citrate Tribasic Dihydrate (solid)
8 Sodium Citrate Tribasic, 1 M
9 Trisodium Citrate Dihydrate, 0.5% (wt:vol)
10 Trisodium Citrate Dihydrate, 1%
11 Trisodium Citrate, 1 M