性状  白色有光泽六角形或立方棱晶。有硝石味。有吸湿性。高温时分解。有氧化性。高温分解有二氧化氮气味, 在高温或强烈撞击下爆炸.能溶于水、丙酮,微溶于醇,溶于5份冷水、0.5份沸水，溶于丙酮，微溶于乙醇。有刺激性。半数致死量(大鼠，腹腔)1.2g/kg。
密度:3.64-3.68
熔点:414℃
折光率:1.55-1.56
   
备注:  以上描述，仅作参考，并不表示您收到的产品，与此项描述完全相符，产品的出厂标准，请参见质量标准。
质量标准  
   AR,99.0%：

外观Appearance                          White to Off-White Crystals
X-射线衍射分析X-Ray Diffraction         Conforms to Structure 
纯度Purity (Titration by NaOH)          98.5 - 101.5 %
氯chloride (Cl-):                       ≤300 ppm
硫酸根sulfate (SO42-):                  ≤50 ppm
Ca:                                     ≤50 ppm
Cd:                                     ≤50 ppm
Co:                                     ≤50 ppm
Cu:                                     ≤50 ppm
Fe:                                     ≤50 ppm
K:                                     ≤100 ppm
Na:                                     ≤100 ppm
Ni:                                     ≤50 ppm
Pb:                                     ≤50 ppm
Zn:                                     ≤50 ppm

99.99% metals basis:

外观Appearance                          White Powder or Crystals
X-射线衍射分析X-Ray Diffraction         Conforms to Structure
红外光谱鉴别Infrared spectrometry       Conforms to Structure
纯度Purity                              ≥99.99% Based on Trace Metals Impurities of ICP
ICP:                                    Confirms Cesium Component Confirmed
痕量金属分析total metallic impurities   ≤200ppm by ICP Atomic emission
(Rb、Mg、Ba、Ta)

99.999% metals basis:

外观Appearance                          White Powder or Crystals
纯度Purity                              ≥99.999% Based on Trace Metals Impurities of ICP
ICP:                                    Confirms Cesium Component Confirmed
痕量金属分析total metallic impurities   ≤20ppm by ICP Atomic emission
(Rb、Mg、Ba、Ta)
贮存  密封阴凉干燥保存。
用途  分析试剂、铯盐制造、氧化剂、钠的微量分析、环境控制分析中放射性物质的检测,石油化工业催化剂加剂,光纤中调节光折射率等. 本产品在分析试剂和某催化剂领域已应用多年.用于。
联合国编号  1451
Risk：  R8- R36/37/38-
Safety :  S17-
Hazard :  O - Xi -