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品級Grade                               分析純  
                                        (AR)
游離鄰甲酚磺酞                          合格  
分光有效含量，%                         ≥75.0  
對鋅靈敏度試驗                          合格  
灼燒殘渣，%                             25.0～30.0  


品級Grade                               高純級  
外觀Appearance                          紅棕色結(jié)晶性粉末
紅外光譜鑒別Infrared spectrometry       Conforms
λ max.                                  433.0 ～ 437.0 nm(H2O)
Absorbance                              ≥0.210(1g/L, H2O, 433.0 to 437.0 nm)(after drying)
對離子靈敏性試驗Sensitiveness test      pass