alkalinity noun[ U ] uk /ˌælkəˈlɪn.ə.ti/ us /ˌælkəˈlɪnət̬i/ the amount or level of an alkali(= a substance with the opposite effect or chemical behaviour to an acid) in a substance: 碱度 The alkalinity of soil is measured by its pH value. 土壤的碱度是由其pH值来衡量的。 The water is warm and has high alkalinity.水是温暖的并具有高碱度。 See
alkali You can add baking soda to the water in your swimming pool to raise the alkalinity. Many families monitor the acidity or alkalinity of their gardens or lawns. The pH scale is used to measure the acidity or alkalinity of something. SMART Vocabulary: related words and phrases Chemistry: types of chemical acid salt aerogel albumin alkali metal alkaline alkaloid antioxidant carbohydrate inorganic isopropanol ketone lectin melamine methyl orange monosaccharide mothball propellant saline soluble sulphide |