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乙酸钡

乙酸钡
IUPAC名
Barium acetate
英文名 Barium acetate
别名 醋酸钡
识别
缩写 Ba(OAc)2
CAS号 543-80-6  checkY
PubChem 10980
ChemSpider 10515
SMILES
 
  • [Ba+2].[O-]C(=O)C.[O-]C(=O)C
InChI
 
  • 1/2C2H4O2.Ba/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2
InChIKey ITHZDDVSAWDQPZ-NUQVWONBAA
EINECS 208-849-0
RTECS AF4550000
性质
化学式 C4H6BaO4
摩尔质量 255.42 g·mol−1
外观 白色固体
气味 无味
密度 2.468 g/cm3(无水)
2.19 g/cm3(一水)
熔点 450 °C(723 K)
溶解性 55.8 g/100 mL (0 °C)
72 g/100mL (20 °C)
溶解性 微溶于乙醇
磁化率 -100.1·10−6 cm3/mol (2H2O)
结构
晶体结构 tetragonal
危险性
GHS危险性符号
《全球化学品统一分类和标签制度》(简称“GHS”)中有害物质的标签图案
GHS提示词 警告
H-术语 H302, H332[1]
P-术语 P261, P264, P304+P340, P301+P312, P312, P501[1]
致死量或浓度:
LD50中位剂量
921 mg/kg(大鼠,口)
相关物质
其他阴离子 甲酸钡
硬脂酸钡
其他阳离子 乙酸钙
相关化学品 碳酸钡
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

乙酸钡是钡的乙酸盐,化学式为,有时写作。乙酸钡存在无水物、一水合物和二水合物,也能形成酸式盐。[2]

制备

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乙酸钡可由乙酸和氢氧化钡碳酸钡反应得到:

Ba(OH)2 + 2 CH3COOH → Ba(CH3COO)2 + 2 H2O
BaCO3 + 2 CH3COOH → Ba(CH3COO)2 + H2O + CO2

硫化钡乙酸反应,也能生成乙酸钡:[3]

BaS + 2 CH3COOH → Ba(CH3COO)2 + H2S

用途

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乙酸钡可以作为原料,用于制备钛酸钡[4]、锡酸钡[5]等钡化合物。

管制信息

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乙酸钡在中国属于“一般危险化学品”而受到管制;在日本有毒有害物质控制法日语毒物及び劇物取締法有毒有害物质条例日语毒物及び劇物指定令中属于“有害物质”而受到管制。

参考文献

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  1. ^ 1.0 1.1 醋酸钡 化学品安全技术说明书. ThermoFisher Scientific. [2017-08-20]
  2. ^ 顾学民 等. 无机化学丛书 第二卷 铍 碱土金属 硼 铝 镓分族. 科学出版社, 2011. pp 147. 4.9.2 有机酸盐. ISBN 978-7-030550-3
  3. ^ Barium acetate页面存档备份,存于互联网档案馆), hillakomem.com, retrieved 30 June 2009
  4. ^ 王长文, 沈君权, 膝元成. 正丁醇钛—乙酸钡水解法合成BaTiO3粉体的工艺研究页面存档备份,存于互联网档案馆)[J]. 武汉理工大学学报, 1994(1):7-12.
  5. ^ 王红军, 朱光辉, 郭书培,等. BaSnO3纳米粒子的合成、表征及其对甲基橙的光催化降解性能[J]. 信阳师范学院学报:自然科学版, 2013, 26(1):113-116.
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乙酸钡
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