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二硫化锡

二硫化锡
IUPAC名
Tin(IV) sulfide
别名 Stannic sulfide, Tin disulfide,
硫化锡(IV)
识别
CAS号 1315-01-1  checkY
PubChem 73977
15238661((S=Sn=S))
SMILES
 
  • [S-2].[S-2].[Sn+4]
ChEBI 50886
性质
化学式 SnS2
摩尔质量 182.84 g·mol⁻¹
外观 金黄色晶体
密度 4.5g/cm3
熔点 (分解)
溶解性 难溶于水
结构
晶体结构 三方晶系, hP3, 空间群 = P-3m1, No. 164
配位几何 octahedral
危险性
欧盟分类 未列明
NFPA 704
0
1
0
 
相关物质
其他阴离子 二氧化锡
其他阳离子 二硫化碳
二硫化硅
二硫化锗
相关化学品 一氧化锡
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

二硫化锡是一种无机化合物,俗称“金粉”,常用作金色的涂料[1]

制备

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二硫化锡可由的存在下直接化合得到,反应需要加热[2]

Sn + 2 S —I2→ SnS2

另一种方法则是将硫化氢通入锡(IV)盐[2]或锡(IV)酸盐溶液[1],沉淀得到。

结构与物理性质

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二硫化锡有CdI2型晶体结构,难溶于水[2]

化学性质

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二硫化锡是酸性硫化物[3],可溶于碱金属硫化物溶液,产生硫代锡酸盐[2],如:

SnS2 + Na2S → Na2[SnS3]
SnS2 + 2 Na2S → Na4[SnS4]

也可溶于硫化铵溶液:

SnS2 + (NH4)2S → (NH4)2[SnS3]

参考资料

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  1. ^ 1.0 1.1 《无机化学》(第二版)下册.庞锡涛 主编. 高等教育出版社. 5—2 锡、铅的化合物. 一、锡的化合物. P251. 3.硫化物. ISBN 978-7-04-005387-6
  2. ^ 2.0 2.1 2.2 2.3 《无机化学丛书》.第五卷 氧 硫 硒分族. 张青莲 主编. 科学出版社. P207. 3.12.5 碳族元素的硫化物. ISBN 978-7-03-030544-2
  3. ^ 《无机化学》(第四版). 天津大学无机化学教研室 编. 高等教育出版社. 12.2.4 锡、铅的重要化合物. P354. 3.锡和铅的硫化物.ISBN 978-7-04-028478-2
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二硫化锡
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