Table 5 Compositions of the demineralization and remineralization solutions.

Demineralization solution

Calcium chloride dihydrate [CaCl₂·2H₂O]

2.25 mM

Potassium dihydrogen phosphate [KH₂PO₄]

1.35 mM

Potassium chloride [KCI]

130 mM

Acetic acid [CH₃COOH]

50 mM

Potassium hydroxide [KOH]

pH adjusted to 4.5

Remineralization solution

Calcium chloride dihydrate [CaCl₂·2H₂O]

1.5 mM

Potassium dihydrogen phosphate [KH₂PO₄]

0.9 mM

Potassium chloride [KCl]

150 mM

HEPES [C₈H₁₈N₂O₄S – 1]

20 mM

Potassium hydroxide [KOH]

pH adjusted to 7