查看“︁四硫代钼酸铵”︁的源代码

{{chembox
| Watchedfields = changed
| verifiedrevid = 439641109
| Name = 四硫代钼酸铵
| OtherNames = 硫代钼酸铵
| NameEn = ammonium tetrathiomolybdate
| ImageFile = Ammonium_Tetrathiomolybdate.jpg
|Section1={{Chembox Identifiers
| SMILES = [NH4+].[NH4+].[S-][Mo]([S-])(=S)=S
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 10764593
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/Mo.2H3N.4S/h;2*1H3;;;;/q;;;;;2*-1/p+2
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = PQNOIAHNKHBLRN-UHFFFAOYSA-P
| InChI = 1S/Mo.2H3N.4S/h;2*1H3;;;;/q;;;;;2*-1/p+2
| InChIKey1 = PQNOIAHNKHBLRN-UHFFFAOYSA-P
| CASNo_Ref = {{cascite|correct|??}}
| CASNo = 15060-55-6
| RTECS = QA4668250
| PubChem = 15251598
| UNII = 4V6I63LW1E
  }}
|Section2={{Chembox Properties
| Formula = (NH<sub>4</sub>)<sub>2</sub>MoS<sub>4</sub>
| MolarMass = 260.28 g/mol
| Appearance = 红色晶体
| Density = 
| Solubility =
| Solvent = 
| SolubleOther =
| MeltingPt =  155&nbsp;°C<ref name=Prasad1>{{cite journal |last1= Prasad |first1= TP |last2= Diemann |first2= E |last3= Müller |first3= A |title =Thermal decomposition of (NH<sub>4</sub>)<sub>2</sub>MoO<sub>2</sub>S<sub>2</sub>, (NH<sub>4</sub>)<sub>2</sub>MoS<sub>4</sub>, (NH<sub>4</sub>)<sub>2</sub>WO<sub>2</sub>S<sub>2</sub> and (NH<sub>4</sub>)<sub>2</sub>WS<sub>4</sub> | journal = [[Journal of Inorganic and Nuclear Chemistry]] | year = 1973 | volume = 35 | pages = 1895 | doi = 10.1016/0022-1902(73)80124-1 | issue = 6}}</ref>（分解）
| pKb = 分解
  }}
|Section3={{Chembox Structure
| Coordination = 
| CrystalStruct = <ref>{{cite journal |first1= B |last1= Hill |first2= H-W |last2= Lerner |first3= M |last3= Bolte |title= Redetermination of diammonium thiomolybdate|journal=[[Acta Crystallographica E]] |volume=66 |year=2010 |issue=13 |pages= i13|doi=10.1107/S1600536810003016}}</ref>
  }}
|Section7={{Chembox Hazards
| ExternalSDS =
| MainHazards = 有毒
| GHSPictograms = {{GHS07}}
| GHSSignalWord = 警告
| HPhrases = {{H-phrases|315|319|335}}
| PPhrases = {{P-phrases|261|264|271|280|302+352|304+340|305+351+338|312|321|332+313|337+313|362|403+233|405|501}}
  }}
|Section8={{Chembox Related
| OtherAnions = [[四硫代钨酸铵]]
| OtherCations = [[四硫代钼酸钾]]
| OtherCpds = [[二硫化钼]]<BR>[[三硫化钼]]
  }}
}}

'''四硫代钼酸铵'''是一种[[无机化合物]]，化学式为(NH<sub>4</sub>)<sub>2</sub>MoS<sub>4</sub>。
==制备==
四硫代钼酸铵可由[[仲钼酸铵]]、[[氨水]]和[[硫化氢]]反应得到，反应在65~70℃水浴中进行：<ref>魏长平, 李海东. 四硫代钼酸铵与四硫代钨酸铵合成方法改进的研究.长春工业大学学报:自然科学版, 1994. 15(3): 56-59</ref>
: <chem>(NH4)6Mo7O24 * 4H2O + 8 NH3*H2O + 28 H2S  -> 7 (NH4)2MoS4 + 36 H2O</chem>
为避免使用剧毒的硫化氢气体，也可先将钼酸铵（或[[三氧化钼]]）溶于浓氨水，然后加入[[硫化铵]]进行反应：<ref>柴永明, 赵会吉, 柳云骐 等. 四硫代钼酸铵制备方法改进. 无机盐工业, 2007. 39(5): 12-15</ref>
:<chem>(NH4)6Mo7O24 + 8 NH3* H2O -> 7 (NH4)2MoO4 + 4 H2O</chem>
: <chem>(NH4)2MoO4 + 4 (NH4)2S -> (NH4)2MoS4 + 4 NH3*H2O</chem>
反应过程中，MoO<sub>4</sub><sup>2-</sup>中的氧被硫取代，颜色变为黄色（MoO<sub>3</sub>S<sup>2-</sup>）、橙红色（MoOS<sub>3</sub><sup>2-</sup>）至血红色（MoS<sub>4</sub><sup>2-</sup>），而MoO<sub>2</sub>S<sub>2</sub><sup>2-</sup>出现的时间很短（反应很快），因此难以观察到橙色。

==参考文献==
{{reflist}}

{{铵盐}}

[[category:铵盐]]
[[category:硫代钼酸盐]]