Ammonium molybdate tetrahydrate

MDL：
--MFCD00167059

Molecular Formula：
(NH4)6Mo7O24·4H2O

Molecular Weight：
1235.86

Alias：
四水合钼酸铵,七钼酸铵,仲钼酸铵 Ammonium heptamolybdate tetrahydrate Molybdic acid ammonium salt tetrahydrate Ammonium heptamolybate Hexaammonium heptamolybdate tetrahydrate

Product order：

Name	Specifications	Packing	Price	Delivery
Ammonium molybdate tetrahydrate	ACS	500g	RMB 418	Consulting service
Ammonium molybdate tetrahydrate	AR	100g	RMB 96.8	Consulting service
Ammonium molybdate tetrahydrate	4N	25g	RMB 140.8	Consulting service
Ammonium molybdate tetrahydrate	SP	25g	RMB 107.8	Consulting service
Ammonium molybdate tetrahydrate	GR	500g	RMB 283.8	Consulting service
Ammonium molybdate tetrahydrate	AR	500g	RMB 239.8	Consulting service

Character：
无色至微绿或微黄结晶。溶于2.3份水，不溶于醇。放置于空气中容易风化，加热到150℃时分解成氨、水和三氧化钼。

Quality Standard：
 
   GB/T 657-95
项目Item                                    优级纯　　　　分析纯     化学纯
　　                                        (GR)          (AR)       　(CP)
含量［(NH4)6Mo7O24·4H2O)Assay,%           81.0(MnO3) 　 ≥99.0        99.0
配制溶液试验Preparing solution              合格          合格          合格
澄清度试验Clarity                           合格          合格          合格
水不溶物Insoluble matter in water,%        ≤0.01        ≤0.01        0.03
氯化物(Cl)Chloride,%                       ≤0.0005      ≤0.001       0.003
硫酸盐(SO4)Sulfate,%                       ≤0.01        ≤0.02        0.05
磷酸盐、砷酸盐、硅酸盐(以SiO3计)
Phosphates,arsenates and silicates,%       ≤0.00075     ≤0.001       0.003
重金属(以Pb计)Heavy metals,%               ≤0.001  　   ≤0.001       0.003

项目名称Item                                                          ACS 级
含量(以MoO3计)Assay                                                  81.0-83.0%
水不溶物Insoluble matter                                             ≤0.005%
氯化物(Cl)Chloride(Cl)                                               ≤0.002%
硝酸盐(NO3)Nitrate                                                   Passes test
砷酸盐，磷酸盐和硅酸盐(以SiO2计)Arsenate,phosphate,and silicate      ≤0.001%
磷酸盐(PO4)Phosphate                                                 ≤5ppm
硫酸盐(SO4)Sulfate                                                   ≤0.02%
重金属(以Pb计)Heavy metals(as Pb)                                    ≤0.001%
镁(Mg)Magnesium(Mg)                                                  ≤0.005%
钾(K)Potassium(K)                                                    ≤0.01%
钠(Na)Sodium(Na)                                                     ≤0.01%

Storage：

用途  用作测定磷酸盐、镍、锗、二氧化硒、砷酸盐和铅等的试剂。色层分析用试剂。