乙二胺四乙酸二钠盐性质熔点250°C(dec.)(lit.)沸点>100°C密度1.01g/mLat25°C折射率n20/D1.363FEMA4520|ETHYLENEDIAMINETETRAACETICACIDDISODIUMSALT闪点>100℃储存条件roomtemp溶解度3MNaOH:100mg/mL形态crystalline酸度系数(pKa)pKChemicalbook1:1.99;pK2:2.67;pK3:6.16;pK4:10.26(25°C)颜色≤5(0.5M)(APHA)气味(Odor)OdorlessPH值4.0-5.5(25℃,0.1MinH2O)酸碱指示剂变色ph值范围4-5at10g/lat23°C水溶解性soluble最大波长(λmax)λ:260nmAmax:0.145λ:280nmAmax:0.025
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