氯化钡

性状描述: 白色结晶或粒状粉末。味苦咸。微有吸湿性。在100℃时即失去结晶水，但放置在湿空气中又重新吸收二分子结晶水。易溶于水，溶于甲醇，不溶于乙醇、乙酸乙酯和丙酮。相对密度3.86。熔点963℃。折光率1.635。中等毒，半数致死量(大鼠，经口)118mg/kg(以无水物计)。

质量标准: GB/T652-88
项目ltem                                优级纯     分析纯    化学纯
                                         (GR)       (AR)      (CP)
含量(BaCl₂•2H₂O),%                     ≥99.5       99.5      99.0
pH(50g/L溶液,25℃)pH of water solution    5.0-7.0    5.0-7.0   5.0-7.0
澄清度试验Clarity                         合格       合格      合格
水不溶物lnsoluble matter in water,%    ≤0.005      0.01      0.02
总氮量(N)Total nitrogen,%              ≤0.001      0.002     0.005
钠(Na)Sodium,%                         ≤0.005      0.01      0.05
钾(K)Potassium,%                       ≤0.005      0.005     0.01
钙(Ca)Calcium,%                        ≤0.01       0.05      0.1
铁(Fe)Iron,%                           ≤0.00005    0.0001    0.0002
锶(Sr)Strontiun,%                      ≤0.05      0.05      0.1
重金属(以Pb计)Heavy metals,%           ≤0.0002    0.0005    0.001

ACS级
项目名称Item                           ACS Grade
含量Assay                              ≥99.0%
干燥失重Loss on drying                 14.0-16.0%
5%溶液25℃的pH值pH                     5.2-8.2
不溶物Insoluble matter                 ≤0.005%
氧化物(以NO₃计)Oxidizing substances    ≤0.005%
钙(Ca)Calcium(Ca)                      ≤0.05%
钾(K)Potassium(K)                      ≤0.0025%
钠(Na)Sodium(Na)                       ≤0.005%
锶(Sr)Strontium(Sr)                    ≤0.1%
重金属(以Pb计)Heavy metals(as Pb)      ≤5ppm
铁(Fe)Iron(Fe)                         ≤0.0002%


99.99% metals basis:

外观Appearance                          White Powder or Crystals
红外光谱鉴别Infrared spectrometry       Conforms to Structure
纯度Purity                              ≥99.99% Based On Trace Metals Analysis
氯Cl                                    28.3- 29.7 %（Titration by AgNO3）
ICP Major Analysis Confirmed            Confirms Barium Component
痕量金属分析Trace Metal Analysis        ≤100ppm by ICP Atomic emission


≥99.999% metals basis:

外观Appearance                          White Powder or Crystals
红外光谱鉴别Infrared spectrometry       Conforms to Structure
纯度Purity                              ≥99.999% Based On Trace Metals Analysis
氯Cl                                    28.3- 29.7 %（Titration by AgNO3）
ICP Major Analysis Confirmed            Confirms Barium Component
痕量金属分析Trace Metal Analysis        ≤10ppm by ICP Atomic emission

储存条件: 密封保存。

用途: 测定硫酸盐和硒酸盐等,色谱分析，点滴分析测定铂，软水剂。织物染色。