Ammonium iron(III) sulfate dodecahydrate

MDL：
MFCD00150004

Molecular Formula：
H4FeNO4S2·12H2O

Molecular Weight：
482.20

Alias：
十二水合硫酸铁铵,硫酸铁铵,铁铵矾,硫酸铁(Ⅲ)铵,铁明矾 Ferric ammonium sulfate Ammonium iron sulfate Ferric alum,Iron alum

Product order：

Name	Specifications	Packing	Price	Delivery
Ammonium iron(III) sulfate dodecahydrate	AR	500g	RMB 41.8
Ammonium iron(III) sulfate dodecahydrate	CP	500g	RMB 28.6
Ammonium iron(III) sulfate dodecahydrate	PT	100g	RMB 38.5
Ammonium iron(III) sulfate dodecahydrate	ACS	500g	RMB 41.8
Ammonium iron(III) sulfate dodecahydrate	ACS	25kg	RMB 1364
Ammonium iron(III) sulfate dodecahydrate	AR	25kg	RMB 1089

Character：
无色至淡紫色透明八面形结晶，无气味，有收敛酸味。有风化性。易溶于水，几乎不溶于醇。0.1mol/L水溶液pH为2.5。230℃失去12分子结晶水。有刺激性。
密度:1.71
熔点: 37℃
折光率:1.4854

Quality Standard：
GB/T 1279-89
项目Item                                             分析纯      化学纯
                                                      (AR)        (CP)
含量［NH4Fe(SO4)2·12H2O)Assay,%                     ≥99.0       98.0
水不溶物Insoluble matter in water,%                  ≤0.005      0.015
氯化物(Cl)Chloride,%                                 ≤0.0005     0.005
硝酸盐(NO3)Nitrate,%                                 ≤0.01       0.02
钠(Na)Sodium,%                                       ≤0.01       0.05
镁(Mg)Magnesium,%                                    ≤0.01       0.05
钾(K)Potassium,%                                     ≤0.01       0.05
锰(Mn)Manganese,%                                    ≤0.005       --
亚铁(Fe)Ferrous,%                                    ≤0.001      0.005
铜(Cu)Copper,%                                       ≤0.002      0.01
锌(Zn)Zinc,%                                         ≤0.003      0.01
铅(Pb)Lead,%                                         ≤0.001       --

ACS级
项目名称Item                                        ACS Grade
含量[Fe(SO4)2NH4·12H2O]Assay                        98.5-102.0%
水不溶物Insoluble matter in water                    ≤0.01%
氯化物(Cl)Chloride                                   ≤0.001%
硝酸盐(NO3)Nitrate                                   ≤0.01%
钙(Ca)Calcium                                        ≤0.01%
铜(Cu)Copper                                         ≤0.003%
镁(Mg)Magnesium                                      ≤0.005%
钾(K)Potassium                                       ≤0.005%
钠(Na)Sodium                                         ≤0.02%
锌(Zn)Zinc                                           ≤0.003%
亚铁盐(Fe2+)Ferrous                                  Passes test

Storage：
密封避光保存。
测定卤素的指示剂，银量法指示剂，媒染剂，氮肥生产中测定纯碱含铁量，分析金属盐溶液的氰化物，配高铁的标准。