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|Section2= |Section3= |Section7= |Section8= }} Sodium bisulfate, also known as sodium hydrogen sulfate,〔The prefix "bi" in "bisulfate" comes from an outdated naming system and is based on the observation that there is two times as much sulfate (SO4) in sodium bisulfate (NaHSO4) and other bisulfates as in sodium sulfate (Na2SO4) and other sulfates.〕 is the sodium salt of the bisulfate anion, with the molecular formula NaHSO4. Sodium bisulfate is an acid salt formed by partial neutralization of sulfuric acid by an equivalent of sodium base, typically either in the form of sodium hydroxide or sodium chloride. It is a dry granular product that can be safely shipped and stored. The anhydrous form is hygroscopic. Solutions of sodium bisulfate are acidic, with a 1M solution having a pH of < 1. ==Production== One production method involves mixing stoichiometric quantities of sodium hydroxide and sulfuric acid which react to form sodium bisulfate and water. :NaOH + H2SO4 → NaHSO4 + H2O A second production method involves reacting sodium chloride (salt) and sulfuric acid at elevated temperatures to produce sodium bisulfate and hydrogen chloride gas. :NaCl + H2SO4 → NaHSO4 + HCl The liquid sodium bisulfate is sprayed and cooled so that it forms a solid bead. The hydrogen chloride gas is dissolved in water to produce hydrochloric acid as a useful coproduct of the reaction. Sodium bisulfate is also produced as a byproduct of the production of many other mineral acids via the reaction of their sodium salts with an excess of sulfuric acid: *NaCN + H2SO4 → NaHSO4 + HCN *NaNO3 + H2SO4 → NaHSO4 + HNO3 *NaClO4 + H2SO4 → NaHSO4 + HClO4 In most cases, the acids produced have a lower boiling point than the reactants and are separated from the reaction mixture by distillation. There are only two producers in the USA, one being Jones-Hamilton Co., who uses the sulfuric acid/sodium chloride process, which produces the anhydrous form. The other supplier, Jost Chemical, uses the sodium hydroxide/sulfuric acid method, which produces the monohydrate. 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 bisulfate」の詳細全文を読む スポンサード リンク
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