无色至黄色斜方结晶。易吸湿。90℃以上开始失水，230℃时变为无水物。易溶于水和醇。低毒，半数致死量(大鼠，经口)2111mg/kg。有刺激性。
密度：3.94
熔点：848℃

99.9% metals basis:


外观Appearance                          White to Off-White or Light Yellow Crystals or Crystalline Powder
X-射线衍射分析X-Ray Diffraction         Conforms to standard
纯度Purity                              ≥99.9% Based On Rare Earth Analysis 
of ICP
Ce                                      36.5 - 38.7 % (Complexometric EDTA)
ICP:                                    Confirms Cerium Component Confirmed 
痕量稀土分析Trace Rare Earth Analysis   ≤2000ppm by ICP Atomic emission
(Gd、Tb、La、Pr、Nd、Fe、Se、Yb、Lu) 



99.99% metals basis:


外观Appearance                          White to Off-White or Light Yellow Crystals or Crystalline Powder
X-射线衍射分析X-Ray Diffraction         Conforms to standard
纯度Purity                              ≥99.99% Based On Rare Earth Analysis 
of ICP
Ce                                      36.5 - 38.7 % (Complexometric EDTA)
ICP:                                    Confirms Cerium Component Confirmed 
痕量稀土分析Trace Rare Earth Analysis   ≤200ppm by ICP Atomic emission
(Gd、Tb、La、Pr、Nd、Fe、Se、Yb、Lu、Ni)

制备金属铈和铈盐。烯烃聚合反应中与铝盐或镁盐一起作催化剂；用在把酯转化为烯丙基硅烷。
密封保存。