性状  白色固体。微溶于冷水，溶于热水、酸、乙醇。
密度:5.72
沸点:2000℃
熔点:1923℃
   
质量标准  
项目                                    分析纯 
                                        (AR)
澄清度试验Clarity                       合格 
含量Assay                               ≥97.0% 
硫酸不沉淀物                            ≤0.5% 
氯化物Chloride                          ≤0.01% 
碳酸盐carbonate                         ≤2.0% 
铁Iron(Fe)                              ≤0.005% 
盐酸不溶物Insoluble matter in HCl       ≤0.5% 
重金属Heavy metals                      ≤0.005% 
总氮量total nitrogen content            ≤0.01% 

99.5%:

外观Appearance                          白色至类白色粉末
纯度Purity                              ≥99.5% Based on Trace Metals Impurities of ICP
含量Assay                               97.5 - 102.5 % (Titration by NAOH)
ICP:                                    Confirms Barium Component Confirmed
痕量金属分析Trace Metal Analysis        ≤5000ppm by ICP Atomic emission
(Na、K、Cs、Ca、Cu、Sr、Y、Zn、Al、V、In、Ce、Cr、Pb、Pr、As、Re、Fe、Sm)

99.95% metals basis：

外观Appearance                          白色至类白色粉末
纯度Purity                              ≥99.95% Based on Trace Metals Impurities of ICP
含量Assay                               97.5 - 102.5 % (Titration by NAOH)
ICP:                                    Confirms Barium Component Confirmed
痕量金属分析Trace Metal Analysis        ≤500ppm by ICP Atomic emission
(Na、K、Cs、Ca、Cu、Sr、Y、Zn、Al、V、In、Ce、Cr、Pb、Pr、As、Re、Fe、Sm)
贮存  
用途  用于气体的干燥剂，制造过氧化钡和钡盐等。用于制备黑白、彩色显像管及多种电真空管的吸气剂和超导材料。
联合国编号  1884
Risk：  R20/22- R34-
Safety :  S26 - S36/37/39- S45 -