Sorenson table of buffer mixtures

Na2HPO4Solution

(mL)

KH2PO4 Solution

(mL)

pH

0.25

9.75

5.288

0.5

9.5

5.589

1.0

9.0

5.906

2.0

8.0

6.239

3.0

7.0

6.468

4.0

6.0

6.643

5.0

5.0

6.813

6.0

4.0

6.979

7.0

3.0

7.168

8.0

2.0

7.381

9.0

1.0

7.731

9.5

0.5

8.043