ChemicalBook Product Catalog Inorganic chemistry Inorganic salts Metal Sulphides and sulphates Ammonium iron(III) sulfate

Ammonium iron(III) sulfate

Ammonium iron(III) sulfate Basic information
Synthesis Physical Properties Uses Preparation
Product Name:Ammonium iron(III) sulfate
Synonyms:ammoniumferricsulfate,12-hydrate;AMMONIUM IRON(III) SULFATE;AMMONIUM FERRIC SULPHATE;FERRIC AMMONIUM SULFATE, SAT;FERRIC AMMONIUM SULFATE, SATURATED, 725G/L;FERRIC ALUM;FERRIC ALUM INDICATOR VOLHARD;FERRIC AMMONIUM SULFATE
CAS:10138-04-2
MF:FeH5NO4S
MW:170.95
EINECS:233-382-4
Product Categories:Inorganics;A - FChemical Synthesis;IronVolumetric Solutions;Reference Material Potassium permanganate;By Reference Material;Catalysis and Inorganic Chemistry;Salt Solutions;Volumetric Solutions
Mol File:10138-04-2.mol
Ammonium iron(III) sulfate Structure
Ammonium iron(III) sulfate Chemical Properties
Melting point 39–41℃ [ALD94]
density 1.710
form Liquid
color Clear amber
Water Solubility very soluble H2O; insoluble alcohol [MER06]
Stability:Stable.
CAS DataBase Reference10138-04-2(CAS DataBase Reference)
EPA Substance Registry SystemMonoammonium ferric sulfate (10138-04-2)
Safety Information
Hazard Codes Xi
Risk Statements 36/38
Safety Statements 26
RIDADR UN 3264 8/PG 3
MSDS Information
ProviderLanguage
ALFA English
Ammonium iron(III) sulfate Usage And Synthesis
SynthesisDissolve industrial crystalline ferrous sulfate in water. Filtration, adding sulfuric acid to the filtrate, heating to 30-45 ° C, and then adding 25-30 mL of nitric acid for oxidation. The solution gradually turned from tan to light reddish brown. Use potassium ferricyanide solution to check whether the ferrous ions in the solution are completely oxidized. The solution was slowly heated until it was smoking and a thick slurry was formed, and the nitric acid and nitrogen oxides were removed. Add water to dissolve, re-evaporate until a crystalline film appears, add water and filtered hot solution of ammonium sulfate to this saturated solution, and add concentrated sulfuric acid. Cool to 0°C under stirring, and filter and crystallize to obtain pure ferric ammonium sulfate.
Physical PropertiesThe dodecahydrate is lilac to violet crystal (anhydrous compound is colorless); hydrated crystals lose all water molecules at 230°C; readily dissolves in water; insoluble in alcohol; aqueous solution is acidic.
UsesIron(III) ammonium sulfate is a mordant in dyeing and printing of fabrics and textiles. The compound also is an analytical reagent; and is used in medicine.
PreparationFerric ammonium sulfate is prepared by mixing an equimolar solution of ferric sulfate, Fe2(SO4)3, and ammonium sulfate, (NH4)2SO4. Hydrated crystals are obtained following evaporation and cooling of the solution.
Chemical Propertiespale violet crystals
PreparationFerric ammonium sulfate is prepared by mixing an equimolar solution offerric sulfate, Fe2(SO4)3, and ammonium sulfate, (NH4)2SO4. Hydrated crystals are obtained following evaporation and cooling of the solution.
Flammability and ExplosibilityNotclassified
Purification MethodsCrystallise it from aqueous ethanol.
Ammonium iron(III) sulfate Preparation Products And Raw materials
Raw materialsAmmonium sulfate-->Ferric sulfate
Preparation Productspotassium ferricyanide-->Quinhydrone
Ammonium Sulfite Neomycin sulfate Ammonium hydroxide AMMONIUM sulfate Ferric sulfate Ammonium nitrate Ferrous ammonium sulfate hexahydrate SODIUM SULFATE Ammonium chloride Ammonium persulfate Ammonium citrate tribasic Atropine sulfate Ammonium acetate SULFATE STANDARD Aluminum ammonium sulfate Molybdic acid Ammonium iron(III) sulfate Ammonium Ferric Sulphate Ferric Ammonium Sulfate Ferric Ammonium Sulphate
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