苯甲酸铵 1863-63-4

白色片状结晶或结晶性粉末。无气味或微有苯甲酸气味。在空气中逐渐放出氨。熔点  192-198 °C (dec.)(lit.) 溶解度  H2O: 1 M at 20 °C, clear, colorless 水溶解性  soluble
 

项目Item                                                                  分析纯      化学纯
                                                                                   (AR)        (CP)
含量［C6H5COONH4)Assay,%                              ≥99.0      98.0
pH(50g/L溶液，25℃)pH                                     6.0-7.0     6.0-7.0
水溶解试验Solubility                                                合格        合格
乙醇溶解度试验Solubility in ethanol                    合格        合格
灼烧残渣(以硫酸盐计)Ignition residue,%              ≤0.01      0.05
氯化物(Cl)Chloride,%                                             ≤0.005     0.02
硫化合物(以SO4计)Sulfur compounds                ≤0.005     0.02
铁(Fe)Iron,%                                                            ≤0.0005    0.001
砷(As)Arsenic,%                                                      ≤0.0002    0.0002
重金属(以Pb计)Heavy metals,%                          ≤0.001     0.002

项目名称Item                                                           ACS Grade
含量Assay                                                                 ≥99.7%
5%溶液25℃的pH值pH                                             5.0-8.0
不溶物.Insoluble matter                                         ≤0.005%
灼烧残渣Residue after ignition                               ≤0.005%
还原高锰酸盐Substances reducing permanganate          Passes test
氯化合物(Cl)Chloride compounds(as Cl)             0.01%
重金属(以Pb计)Heavy metals(as Pb)                     ≤0.001%
铁(Fe)Iron(Fe)                                                             ≤0.001%

用作防腐剂及分析试剂

毒性分级 高毒
急性毒性 口服-大鼠 LD50: 825 毫克/公斤; 口服-小鼠LD50: 235 毫克/公斤
可燃性危险特性 可燃;燃烧产生有毒氮氧化物和氨烟雾
储运特性 库房通风低温干燥
灭火剂 干粉、泡沫、砂土、二氧化碳, 雾状水