MDL：
MFCD00150004

Molecular Formula：
H4FeNO4S2·12H2O

Molecular Weight：
482.20

Alias：
十二水合硫酸鐵銨,硫酸鐵銨,鐵銨礬,硫酸鐵(Ⅲ)銨,鐵明礬 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：
無(wú)色至淡紫色透明八面形結(jié)晶，無(wú)氣味，有收斂酸味。有風(fēng)化性。易溶于水，幾乎不溶于醇。0.1mol/L水溶液pH為2.5。230℃失去12分子結(jié)晶水。有刺激性。
密度:1.71
熔點(diǎn): 37℃
折光率:1.4854

Quality Standard：
GB/T 1279-89
項(xiàng)目Item                                             分析純      化學(xué)純
                                                      (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
硝酸鹽(NO3)Nitrate,%                                 ≤0.01       0.02
鈉(Na)Sodium,%                                       ≤0.01       0.05
鎂(Mg)Magnesium,%                                    ≤0.01       0.05
鉀(K)Potassium,%                                     ≤0.01       0.05
錳(Mn)Manganese,%                                    ≤0.005       --
亞鐵(Fe)Ferrous,%                                    ≤0.001      0.005
銅(Cu)Copper,%                                       ≤0.002      0.01
鋅(Zn)Zinc,%                                         ≤0.003      0.01
鉛(Pb)Lead,%                                         ≤0.001       --

ACS級(jí)
項(xiàng)目名稱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%
硝酸鹽(NO3)Nitrate                                   ≤0.01%
鈣(Ca)Calcium                                        ≤0.01%
銅(Cu)Copper                                         ≤0.003%
鎂(Mg)Magnesium                                      ≤0.005%
鉀(K)Potassium                                       ≤0.005%
鈉(Na)Sodium                                         ≤0.02%
鋅(Zn)Zinc                                           ≤0.003%
亞鐵鹽(Fe2+)Ferrous                                  Passes test

Storage：
密封避光保存。
測(cè)定鹵素的指示劑，銀量法指示劑，媒染劑，氮肥生產(chǎn)中測(cè)定純堿含鐵量，分析金屬鹽溶液的氰化物，配高鐵的標(biāo)準(zhǔn)。