Answer: Curd and sour substances should not be kept in brass and copper vessels because they contain acids, like lactic acid in curd ... in a solution of sodium hydroxide? Answer: When excess ...

Beta hydroxy acid works mainly as an exfoliant. It causes the cells of the epidermis (the outermost layer of the skin) to become "unglued," allowing the dead skin cells to slough off, making room for ...

was prepared by mixing 100 ml of water with NaOH and treated at 80˚C for 30 minutes. The solution was then cooled to room temperature, and the fabrics were washed with deionized water. The pH was ...

Common acids include acetic acid (CH3COOH), sulfuric acid (H2SO4), and hydrochloric acid (HCl). Examples of bases include sodium hydroxide (NaOH), ammonia (NH3), and calcium hydroxide (Ca(OH ...

Citric acid is an organic compound found in high amounts in citrus fruits, and may help improve skin health and protect against kidney stones and inflammation. Some also believe it can help your body ...