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The erosion kinetics of conventional and resin-modified glass-ionomer luting cements in acidic buffer solutions

Binnaz Hazar-Yoruc1, Andac Barkin Bavbek, Mutlu Özcan

  • 1Yıldız Technical University, The Institute of Science, Division of Bioengineering, Davutpasa Campus, Esenler, 34210 İstanbul, Turkey.

Dental Materials Journal
|December 5, 2012
PubMed

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The titration of a polyprotic base such as sodium carbonate with a strong acid such as hydrochloric acid results in two equivalence points on the titration curve. At the first equivalence point, the carbonate ions in the base are completely converted to bicarbonate ions. The second equivalence point corresponds to the complete conversion of bicarbonate ions to carbonic acid, which dissociates into carbon dioxide and water. The region before the first equivalence point corresponds to the...
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When acids come into contact with concrete, they initiate a chemical reaction that dissolves the hydrated cement paste. This process leads to softening and structural weakening of the concrete. This issue is commonly observed in environments such as chimneys, sewers, and industrial settings. The severity of the damage increases as the pH of the water interacting with the concrete drops below 6.5. In particular, a pH under 4.5 can cause significant concrete damage.
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