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"钙指示剂CAS:3737-95-9 英文名称:Calconcarboxylic acid 规格:IND 包装:25克 熔点: 300°C
比重: 1·6
储存条件: RT
用途: 络合指示剂,用作光度法测定Ca2+、UO 的显色剂及EDTA配合滴定测定Ca2+的金属指示剂。
介绍: 微溶于水和乙醇,易溶于碱液和氨水,微溶于水,溶液不稳定。中性溶液中呈紫红色,在pH不大于10时呈红色,在pH12-14间为浅蓝色,能和钙形成红色螯合物。与UO 、Mg2+、Be2+等形成紫蓝或蓝色配合物。最大吸收波长560(366)nm。有刺激性。"
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