10045-89-3 Usage
Description
Ammonium iron(II) sulfate, also known as ferrous ammonium sulfate, is a chemical compound with the formula (NH4)2Fe(SO4)2. It is a light green crystalline solid that decomposes at 100°C and is soluble in water but insoluble in alcohol. The primary hazard associated with this compound is its potential threat to the environment. It is used in various applications, including medicine, chemical analysis, and metallurgy.
Uses
1. Analytical Chemistry:
Ammonium iron(II) sulfate is used as an analytical reagent in titrations and colorimetric measurements for the determination of oxidizing substances, such as chlorine, or to measure the chemical oxygen demand in wastewater. It is also used to prepare Fe(II) standard solutions for these analyses.
2. Calibration Standard:
In magnetic measurements, ammonium iron(II) sulfate serves as a calibration standard due to its magnetic properties.
3. Reducing Agent:
Ammonium iron(II) sulfate acts as a reducing agent in various chemical reactions, where it donates electrons to other substances, leading to their reduction.
4. Catalyst for Polymerization:
Ammonium iron(II) sulfate is used as a catalyst in the process of polymerization, where it accelerates the reaction rate without being consumed in the process.
5. Photographic Chemistry:
In the field of photographic chemistry, this compound is utilized for its specific properties and reactivity.
6. Medicine:
Ammonium iron(II) sulfate is also used in the medical field, although the specific applications are not detailed in the provided materials.
Preparation
Ferrous ammonium sulfate may be prepared by mixing an equimolar solution of ferrous sulfate and ammonium sulfate, followed by evaporation andcrystallization.
Air & Water Reactions
Soluble in water that forms weakly acidic solutions. Deliquesces in air.
Reactivity Profile
Ammonium iron(II) sulfate is a weak reducing agent. Irritating and toxic ammonia and oxides of nitrogen may form in fires [USCG, 1999].
Health Hazard
Inhalation of dust irritates nose and throat. Ingestion causes irritation of mouth and stomach. Dust irritates eyes and can irritate skin on prolonged contact.
Fire Hazard
Special Hazards of Combustion Products: Irritating and toxic ammonia and oxides of nitrogen may form in fires.
Flammability and Explosibility
Notclassified
Potential Exposure
This substance is used in photography,
analytical chemistry and in dosimeters.
Purification Methods
A solution in warm water (0.67g/mL) is cooled rapidly to 0o, and the resulting light bluish-green monoclinic crystals are filtered at the pump, washed with cold distilled water and pressed between sheets of filter paper to dry it. The solubility at 25o is 0.36g/mL. It separates as an almost white powder when a saturated aqueous solution is diluted with EtOH.
Check Digit Verification of cas no
The CAS Registry Mumber 10045-89-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,0,4 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 10045-89:
(7*1)+(6*0)+(5*0)+(4*4)+(3*5)+(2*8)+(1*9)=63
63 % 10 = 3
So 10045-89-3 is a valid CAS Registry Number.
InChI:InChI=1/Fe.2H3N.H2O4S/c;;;1-5(2,3)4/h;2*1H3;(H2,1,2,3,4)/q+2;;;
