无水碳酸钠

厂商:西陇科学
规格附加规格单位 市场价(¥)货号
AR500g

15.00
AR25kg

650.00
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性状:白色粉末。暴露于空气中逐渐吸水成为一水合物。遇酸分解。密封于干燥处保存。
(分析纯)AR
注意:低毒、具腐蚀性。
安全措施:密闭包装,并贮于干燥通风处。与酸类、金属粉末、卤数分储分运。注意个体防护,严禁身体直接接触。皮肤(眼镜)接触,用流动清水冲洗。误食,用水漱口,饮牛奶或蛋清。
技术条件
含量(Na2CO3),%                                                           ≥99.8
                              杂质最高含量(以%计)
澄清度试验,号                                                              3
水不溶物                                                                        0.01
干燥失量(300°C)                                                        1.0
氯化物(Cl)                                                                 0.002
硫化合物(SO4)                                                          0.005
总氮量(N)                                                                  0.001                   
磷酸盐及硅酸盐(SIO4)                                               0.006
镁(Mg)                                                                      0.002
铝(Al)                                                                        0.003
钾(K)                                                                         0.005
钙(Ca)                                                                       0.01
铁(Fe)                                                                        0.0005
重金属(以Pb计)                                                          0.0005

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