Ferric Alum Indicator
SKU: RXSOL-60-6119-100
Ferric Alum Indicator is Chemical indicators used as oxidation reduction indicators.
Alias:
Ferric Alum Indicator, Ammonium iron II sulfate, or Mohrs salt, is the inorganic compound with the formula (NH₄)₂Fe(SO₄)26H₂O
Application:
It is used in medicine, chemical analysis and metallurgy.
Ferrous Ammonium Sulfate Hexahydrate ( Crystalline). Also know as Ammonium iron(II) sulfate, or Mohr's salt, is the inorganic compound with the formula (NH₄)₂Fe(SO₄)₂·6H₂O.
Packing Size:
500.00 ml
Image:
Using Procedure:
Formula Weight: 392.14
Linear Formula: Fe(NH4)2(SO4)2·6H2O
Molecular Formula: H8FeN2O8S2 · 6 H2O
Assay Percent Range: 98.5 to 101.5 %
Test Specification : Appearance Amber liquid
Suitability for Use White precipitate (Excess Silver N/A ions) - Reddish-Brown Color (Excess Thiocyante ions)
Note:
Soluble in water that forms weakly acidic solutions. Deliquesces in air.
Refer this link to get testing procedure HAND BOOK : http://rxmarine.com/water-testing-procedure-handbook
Short Description:
Ferric Alum Indicator is Chemical indicators used as oxidation reduction indicators.
- Manufacturer Part Number: R3050000-120A
- Grade: ACS grade
- CAS#: 7732-18-5,7697-37-2,7783-83-7
- Size: 120 mL Natural Poly bottle
- Boiling Point: Approximately 101°C
- Appearance: Amber liquid
- Physical State: liquid
- Shelf Life (months): 24
- Suitability for Use: White precipitate (Excess Silver ions) - Reddish-Brown Color (Excess Thiocyanate ions). White precipitate (Excess Silver ions) - Reddish-Brown Color (Excess Thiocyanate ions)
Ferrous Ammonium Sulfate solutions are used as reductometric standards in titrations involving Ceric, Dichromate and Permanganate ions, as well as other oxidizers. Since Ferrous ion is easily oxidized by air to Ferric ion, Ferrous Ammonium Sulfate solutions are not as stable as other reductometric standards such as Arsenic Trioxide and Sodium Oxalate solutions, but they do not have the toxicity or environmental problems of the others. Because of this inherent instability, it is recommended that Ferrous Ammonium Sulfate solutions be restandardized periodically when extreme accuracy is required.
Freshly standardized Ferrous Ammonium Sulfate solutions are used in the determination of Chlorine in drinking water, among other applications. Typical reactions involving Ferrous ions are:
2 Fe2+ + Cl2 → 2 Fe3+ + 2 Cl-
5 Fe2+ + MnO4- + 8 H+ → 5 Fe3+ + Mn2+ + 4 H2O
6 Fe2+ + Cr2O72- + 14 H+ → 6 Fe3+ + 2 Cr3+ + 7 H2O
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Volhard Reagent
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