性状  橙红色单斜细粒结晶。在空气中易潮解。易溶于水和乙醇，几乎不溶于浓硝酸。
   
质量标准
项目Item                                                  分析纯   化学纯
                                                           (AR)     (CP)
含量(CeH8N8O18)Assay,%                                  ≥ 99.0     97.0
澄清度试验Clarity                                          合格     合格
硫酸盐(SO4)Sulfate,%　　                                   0.01     0.02
铁(Fe)Iron,%                                            ≤ 0.002    0.01
其他铈盐(CeO2)Other cerium salts                        ≤ 0.2      1.0
其他稀土金属Other rare metals,%                         ≤ 0.2      1.0
重金属(以Pb计)Heavy metals,%                            ≤ 0.002    0.005
氨不沉淀物Substances not precipitated by ammonia,%      ≤ 0.05     0.2

ACS级
项目名称Item                                           ACS Grade
含量[(NH4)2Ce(NH3)6]Assay                               ≥98.5%
稀盐酸不溶物Insoluble in dilute hydrochloric acid       ≤0.05%
氯化物(Cl)Chloride(Cl)                                  ≤0.01%
磷酸盐(PO4)Phosphate                                    ≤0.02%
铁(Fe)Iron(Fe)                                          ≤0.005%

≥99.99% metals basis:

外观Appearance                          橙色粉末或结晶
纯度Purity                              ≥99.99% Based on Rare Earth Analysis
of ICP
Ce                                      25.0 - 26.1 % （By Titration with Dichromate）
ICP:                                    Confirms Cerium Component Confirmed
痕量金属分析Trace Metal Analysis        ≤100ppm by ICP Atomic emission
(K、Na、Dy、Eu、Gd、Ho、Tb)

贮存  密封防潮阴凉处保存。
用途  氧化还原滴定用试剂。烯烃聚合催化剂。
联合国编号  1477
Risk：  R8- R36/37/38-
Safety :  S17- S26- S36-