柠檬酸—柠檬酸钠缓冲液(0.1mol/L)
pH 0.1mol/L柠檬酸/ml 0.1mol/L柠檬酸钠/ml
3.0 18.6 1.4
3.2 17.2 2.8
3.4 16.0 4.0
3.6 14.9 5.1
3.8 14.0 6.0
4.0 13.1 6.9
4.2 12.3 7.7
4.4 11.4 8.6
4.6 10.3 9.7
4.8 9.2 10.8
5.0 8.2 11.8
5.2 7.3 12.7
5.4 6.4 13.6
5.6 5.5 14.5
5.8 4.7 15.3
6.0 3.8 16.2
6.2 2.8 17.2
6.4 2.0 18.0
6.6 1.4 18.6
柠檬酸C6H8O7•H2O,Mr = 210.14,0.1mol/L溶液为21.01g/L
柠檬酸钠Na3C6H5O7•2H2O,Mr = 294.12,0.1mol/L溶液为29.41g/L