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|Section2= |Section7= }} Sodium arsenite usually refers to the inorganic compound with the formula NaAsO2. Also called sodium ''meta''-arsenite, it is the sodium salt of arsenous acid. Sodium arsenite also ) Na3AsO3, called sodium ''ortho''-arsenite.〔Greenwood, N. N.; & Earnshaw, A. (1997). Chemistry of the Elements (2nd Edn.), Oxford:Butterworth-Heinemann. ISBN 0-7506-3365-4.〕 The compounds are colourless solids. ==Synthesis and structure== A mixture of sodium ''meta''-arsenite and sodium ''ortho''-arsenite is produced by treating arsenic trioxide with sodium carbonate or sodium hydroxide.〔 Sodium arsenite is amorphous, typically being obtained as a powder or as a glassy mass. The compound consists of the polymer () associated with sodium cations, Na+. The polymer backbone has the connectivity -O-As(O−)-. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「sodium arsenite」の詳細全文を読む スポンサード リンク
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