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十二水合硫酸铁(III)铵，for analysis, ExpertQ®, ACS, ISO
- Synonyms: Iron(III) ammonium sulfate, Alum iron, Ferric ammonium alum, Iron alum
- NH4Fe(SO4)2·12H2O
- M = 482,19 g/mol
- CAS [7783-83-7]
- EINECS-No.: 233-382-4
- Solub. in water: (25 ºC): 1240 g/l
- Melting point: 39 - 41 ºC
- Tariff number: 2833 30 00 00
- Applications: analytical chemistry, laboratory reagent.
SPECIFICATIONS
assay (iodometric): 99,0 - 102,0 %
identity (IR-spectrum): passes test
insoluble in water: max. 0,005 %
insoluble in HCl : max. 0,01 %
chlorides (Cl): max. 5 ppm
nitrates (NO3): max. 0,01 %
calcium (Ca): max. 0,01 %
copper (Cu): max. 0,002 %
iron (II) (Fe (II)): max. 0,001 %
lead (Pb): max. 10 ppm
magnesium (Mg): max. 0,001 %
manganese (Mn): max. 0,005 %
potassium (K): max. 0,005 %
sodium (Na): max. 0,01 %
zinc (Zn): max. 0,003 % :
| 容量 | 货号 | ||
|---|---|---|---|
 |
x 500 g | HI03150500 | |
|
x 1 kg | HI03151000 |