Ammonium iron sulfate dodecahydrate
99% metals basis
Reagent
Code: #134795
Alias
Related CAS No.: 10138-04-2 (Ferroammonium sulfate), 7783-85-9 (hexahydrate); ferric ammonium sulfate dodecahydrate, ferric ammonium sulfate, ferric ammonium alum, ferric (III) ammonium sulfate, ferric alum
CAS Number
7783-83-7
science Other reagents with same CAS 7783-83-7
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Molecular Information
Weight
482.19 g/mol
Formula
H₄FeNO₈S₂·₁₂H₂O
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Registry Numbers
EC Number
233-382-4
MDL Number
MFCD00150004
thermostat
Physical Properties
Melting Point
39-41 °C(lit.)
Boiling Point
230 °C
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Storage & Handling
Density
1.710 g/cm3
Storage
2-8°C
description Product Description
Used in analytical chemistry as a primary standard for iron titrations, particularly in redox titrations like permanganometry and dichromatometry. It provides a stable and accurate source of ferrous ions. Also employed in the preparation of iron calibration standards for spectrophotometry and atomic absorption spectroscopy. Its well-defined composition and high purity make it suitable for educational laboratory experiments involving volumetric analysis. Additionally, it finds use in the synthesis of iron-based materials and as a reagent in certain electrochemical applications.
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