硼砂是外用消毒防腐药。是用硼酸钙与碳酸钠反应而制备。该产品中常会引入碳酸盐和碳酸氢盐。为准确测定其含量,作者设计了下面的实验。 Borax is topical antiseptic disinfectant. Is prepared by the reaction of calcium borate and sodium carbonate. Carbonates and bicarbonates are often introduced into this product. In order to accurately determine its content, the author designed the following experiment.