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5. Pharmaceuticals In the pharmaceutical sector, sodium metabisulfite is used as a reducing agent and preservative. It plays a crucial role in formulations that require stability against oxidative degradation.

Phosphoric acid also has a significant role within the health sector. It is found in dental products, such as etching gels used to prepare teeth for bonding applications, enhancing the effectiveness of dental sealants and restorative materials. Furthermore, it is utilized in some pharmaceuticals as a pH regulator and as an ingredient in various medications.

In bakery products, acetic acid can improve the dough's stability and flavor. It interacts with other ingredients, promoting a desirable texture and aroma in bread and pastries. In dairy products, acetic acid is used to acidify milk, contributing to the production of cheese and yogurt.