单词	stannous
释义	stannous /ˈstanəs / adjective Chemistry Of tin with a valency of two; of tin(II). Compare with stannic.For example, sodium fluoride, calcium fluoride, and stannous fluoride are all used to help reduce tooth decay.... Reduction with stannous chloride alone allowed for selective reduction of inorganic mercury. Tranexamic acid, D-gluconic acid (hemicalcium salt), dithiothreitol, and stannous chloride were purchased from Sigma (St. Louis, MO). Origin Mid 19th century: from late Latin stannum 'tin' + -ous.
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