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氯化亚锡

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氯化亚锡
IUPAC名
Tin(II) chloride
别名 氯化锡(II)
氯化锡
识别
CAS号 7772-99-8(无水)  checkY
10025-69-1(二水)  ☒N
PubChem 24479
ChemSpider 22887
SMILES
 
  • Cl[Sn]Cl
InChI
 
  • 1/2ClH.Sn/h2*1H;/q;;+2/p-2
InChIKey AXZWODMDQAVCJE-NUQVWONBAJ
UN编号 3260
ChEBI 78067
RTECS XP8700000 (无水)
XP8850000 (二水)
性质
化学式 SnCl2
摩尔质量 (无水) 189.60 g/mol
(二水) 225.63 g·mol⁻¹
外观 白色晶体
密度 (无水) 3.95 g/cm³
(二水,15 °C) 2.71
熔点 246 °C (519 K)
沸点 623 °C (896 K)
溶解性 83.9 g/100 ml (0 °C)
热水中水解
结构
晶体结构 层状(SnCl3链)
配位几何 三角锥形分子构型[1]
分子构型 角形(气态)
危险性
欧盟危险性符号
腐蚀性腐蚀性 C
警示术语 R:R22-R34-R37
安全术语 S:S26-S36/37/39-S45
相关物质
其他阴离子 氟化亚锡
溴化亚锡
碘化亚锡
其他阳离子 氯化锡(IV)
氯化锗
氯化铅
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

氯化锡(II),化学式SnCl2,为白色固体

制备

[编辑]

溶于浓盐酸中,再将溶液蒸发,制得无色针状结晶SnCl2‧2H2O。反应式:

性质

[编辑]

溶于水中则水解生成碱式氯化亚锡[Sn(OH)Cl]的白色沉淀。反应式:

但可完全溶解于酸性溶液之中,并能成功进行置换反应

在酸性环境下易氧化氯化锡(IV),为强还原剂。主要用作化学试剂、有机锡合成原料、电镀塑料电镀的敏化剂、香料的稳定剂、食品添加剂印染助剂、农药中间体、有机合成催化剂等。

参考文献

[编辑]
  1. ^ Leger, J. M.; Haines, J.; Atouf, A. The high pressure behaviour of the cotunnite and post-cotunnite phases of PbCl2 and SnCl2. Journal of Physics and Chemistry of Solids. 1996-01-01, 57 (1) [2023-12-14]. ISSN 0022-3697. doi:10.1016/0022-3697(95)00060-7. (原始内容存档于2014-02-12). 
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氯化亚锡
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