7440-39-3
@7440-39-3
Joined June 2026
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CAS号: 7440-39-3 英文名称: Barium 英文同义词: bario;BARIUM;barium(0);BARIUM, ROD;BARIUM METAL;Barium, 99+%;Barium powder;Barium element;bario (spanish);baryum (french) 中文名称: 钡 中文同义词: 钡;鋇;钡粉;钡棒;钡片;金属钡;钡标样;鋇標準液;钡标准溶液;钡标液/钡 分子式: Ba 分子量: 137.33 熔点 : 725 °C(lit.) 沸点 : 1640 °C(lit.) 密度 : 3.6 g/mL at 25 °C(lit.) 储存条件 : water-free area 形态: rod 颜色: Silver-gray 比重: 3.51 电阻率 (resistivity): 50.0 μΩ-cm, 20°C 水溶解性 : soluble with H2 evolution in cold H2O and hot H2O; slightly soluble alcohol; insoluble benzene [CRC10] 敏感性 : air sensitive, moisture sensitive Merck : 13,967 暴露限值: TLV-TWA 0.5 mg/m3 (for soluble compounds) (ACGIH and MSHA); IDLH (for soluble compounds) 250 mg/m3 (NIOSH). . 稳定性: Stability Reacts vigorously or violently with acids, water, tetrachloromethane, small halogenated hydrocarbons. Should be stored under an inert material such as petroleum ether to exclude air. Flammable. CAS 数据库: 7440-39-3(CAS DataBase Reference) EPA化学物质信息: Barium (7440-39-3) 危险品标志 : C,Xi,F 危险类别码 : 25-26-34-36/37/38-14/15-11 安全说明 : 23-26-36-36/37/39-45-43-36/37-16 危险品运输编号 : UN 3264 8/PG 3 WGK Germany : 3 RTECS号: CQ8370000 TSCA : Yes 海关编码 : 2805 19 10 HazardClass : 8 PackingGroup : III