Magnesium Hydroxide - Magnesium Suisanka

Mg(OH) ₂ (58.32). Naturally occurs as hydrotalcite (brucite). It is obtained by the reaction of magnesium oxide with water, or by adding alkali to an aqueous solution of magnesium salts. White powder. Density 2.36 g cm ^-3. Releases water at 350 °C to produce magnesium oxide. Sparingly soluble in water, soluble in aqueous ammonium salt solutions. Dissolves in acid to produce magnesium salts. The aqueous solution is alkaline, and absorbs carbon dioxide to produce carbonate hydroxide salt MgCO ₃ ·Mg(OH) _2. Used in pulp production, flue gas desulfurization agent, neutralizing agent, flame retardant, glass additive, ferrite raw material, fertilizer, medicine (antacid, laxative), etc. [CAS 1309-42-8]

Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition

Mg(OH)₂(58.32)．天然には水滑石(ブルース石)として産出する．酸化マグネシウムと水との反応，またはマグネシウム塩の水溶液にアルカリを加えると得られる．白色の粉末．密度2.36 g cm^－3．350 ℃ で水を放ち酸化マグネシウムを生じる．水に難溶，アンモニウム塩水溶液に可溶．酸に溶けてマグネシウム塩を生じる．水溶液はアルカリ性で，二酸化炭素を吸収して炭酸水酸化物塩MgCO₃･Mg(OH)₂を生じる．パルプの製造，排煙脱硫剤，中和剤，難燃剤，ガラス添加剤，フェライト原料，肥料，医薬品(制酸剤，下剤)などに用いられる．[CAS 1309-42-8]

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