【摘要】 结合生产实际,为了更准确地测定石膏中氧化钙的含量,检验其纯度,首先利用国标法测定石膏粉末中氧化钙的含量。在相同条件下,分别讨论不同钙指示剂对实验效果的影响,实验结果表明:钙紫红指示剂具有更好的灵敏性和可靠性。更多还原

【Abstract】 Compared the method of PRC Standard,the research discussed the effect of different indicators for analyzing the content of calcium oxide in plaster at the same condition.The experiment result showed Calconcarboxylic acid was better than others in sensitivity,accuracy,and stability.更多还原