碳酸钾

性状：白色粉末或颗粒，易潮解。
技术条件
含量（K2CO3·H2O）,%                                                 ≥99.8                                   杂质最高含量（以%计）
澄清度试验                                                                      合格
水不溶物                                                                         0.005
干燥失重                                                                         1.0        
氯化物（Cl）                                                                  0.003
硫化合物（以SO4计）                                                    0.003                                       
总氮量（N）                                                                  0.001
磷酸盐及硅酸盐（以SiO2计）                                         0.005
钠（Na）                                                                       0.05
镁（Mg）                                                                      0.002
钙（Ca）                                                                       0.002
铁（Fe）                                                                        0.0005
铜（Cu）                                                                       0.0005
铅（Pb）                                                                       0.0005
警告：低毒，具腐蚀性。
安全措施：密切包装，并置于干燥通风处。与氧化剂、酸类等分储分运。注意个体防护，严禁身体直接接触。皮肤（眼睛）接触，用流动清水冲洗。误食，用水漱口，饮牛奶或蛋清。