hydroxyl ion
[haɪˈdrɒksɪl ˈaɪən]
nounpl: hydroxyl ions
íon hidróxido
1. A negatively charged ion consisting of an oxygen atom bonded to a hydrogen atom (OH⁻), commonly found in aqueous solutions and important in acid-base chemistry
The hydroxyl ion concentration determines the pH level of a solution.
A concentração de íons hidróxido determina o nível de pH de uma solução.
2. An anion with the chemical formula OH⁻ that accepts protons and acts as a base in chemical reactions
Sodium hydroxide dissociates in water to produce sodium ions and hydroxyl ions.
O hidróxido de sódio se dissocia na água para produzir íons de sódio e íons hidróxido.
The term 'hydroxyl ion' is universal in scientific and academic contexts across both Brazil and the United States. In Portuguese, both 'íon hidróxido' and 'ião de hidróxilo' are acceptable, with the former being more commonly used in Brazilian Portuguese and the latter in European Portuguese. This is fundamental terminology in chemistry education and industrial applications.
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