磷酸二氢钠

厂商:广东光华
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无色或 白色结晶,溶于水,密封于干燥通风处。吸入后呼吸新鲜空气。接触后用水冲洗,吞食后饮大量水,考虑就医。不燃物。
技术要求
含量(NaHPO4·12H2O)Assay                                         ≥99.0%
pH值(50g/L,25°C)pH value                                       4.2-4.6
澄清度试验,号                                                              3
水不溶物                                                                        ≤ 0.01%
氯化物(Cl)                                                                 ≤ 0.005%    
硫酸盐(SO4)                                                              ≤ 0.005%
硝酸盐(NO3)                                                             ≤ 0.01%                    
铵(NH4)                                                                    ≤ 0.002%  
钾(K)                                                                         ≤ 0.02%
铁(Fe)                                                                        ≤ 0.001%
砷(As)                                                                        ≤ 0.0002%
重金属(以Pb计)                                                           ≤0.001

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