十二水合磷酸氢二钠(磷酸氢二钠)

厂商:广东西陇科学
规格附加规格单位 市场价(¥)货号
AR500g

11.00
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性状:无色结晶。在干燥空气中易风化。密封于阴凉处保存。

技术条件
含量(Na2HPO4·12H2O),%                                          ≥99.0

pH值(50g/L,25°C)                                                       9.1~9.4

                                   杂质最高含量(以%计)
澄清度试验                                                                      合格
水不溶物                                                                         0.005
氯化物(Cl)                                                                  0.001
硫酸盐(SO4)                                                              0.005                                      
总氮量(N)                                                                  0.002
砷(As)                                                                        0.0005
钾(K)                                                                         0.01
铁(Fe)                                                                        0.0005
重金属(以Pb计)                                                          0.0005

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