Ferrous ammonium sulphate

Ferrous ammonium sulphate

Mohr's Salt, Iron(II) Ammonium Sulfate Hexahydrate, Ammonium Iron(II) Sulfate, Ferrous Diammonium Sulfate

CAS 7783-85-9

Chemical Formula (NH₄)₂Fe(SO₄)₂•6H₂O

Molecular Weight 392.14 g/mol

Ferrous ammonium sulphate, also known as Mohr's salt, is a double salt used in analytical chemistry, especially in redox titrations. It is also employed in laboratory research, water treatment, and as a source of ferrous ions in various applications.

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Industrial Uses

1. Performance Chemicals

  • Primary Standard in Redox Titrations: Used as a primary standard in titrimetric analysis, especially for permanganometry (KMnO₄ titration). It offers high purity and stability, ideal for determining oxidizing agents like KMnO₄ and Cr₂O₇²⁻.
  • Calibration of Analytical Instruments: Employed in preparing standard iron solutions for spectrophotometry and other instrumental methods.
  • Catalyst and Reducing Agent in Synthesis: Used in organic and inorganic chemical synthesis as a source of ferrous ions and as a mild reducing agent, especially in processes requiring controlled iron reactivity.
  • Source of Fe²⁺ Ions: In redox-sensitive chemical reactions or industrial formulations, it provides a stable and predictable Fe²⁺ source under acidic conditions.

2. Water Treatment 

  • Reducing Agent for Hexavalent Chromium (Cr⁶⁺): Acts as a powerful reducing agent, converting toxic Cr⁶⁺ into less harmful Cr³⁺ in industrial wastewater treatment processes.
  • Coagulant Additive in Wastewater Treatment: Sometimes used in combination with other salts to aid flocculation and sedimentation of suspended solids and heavy metals.

3. Metal Treatment

  • Iron Source in Electroplating Baths: Utilized as a controlled iron source for iron-plating applications, especially in laboratory and decorative coatings.

Specifications

Assay ≥ 98.0%
Appearance Light green crystalline solid
Odor Odorless
Boiling Point Decomposes before boiling
Melting Point ~100 °C (loses water of crystallization)
Density ~1.86 g/cm³ (at 20 °C)
Solubility Soluble in water; insoluble in alcohol
Viscosity Not applicable (solid form)
Flash Point Not flammable

Hazard Symbols

Corrosives
Irritants/Sensitisers/Other Hazards

FAQs

1. What is the current price of Ferrous ammonium sulphate in India?
The price of Ferrous ammonium sulphate can vary based on factors such as purity, quantity, etc. For the most accurate and competitive pricing, please contact us at +91.630 100 6301 directly for a customized quote tailored to your needs.

2. Where can I buy Ferrous ammonium sulphate in India?
You can purchase Ferrous ammonium sulphate from MULTICHEM, a leading exporter with a reputation for quality and reliability. We provide convenient options for bulk orders and direct shipments across global markets. For more details on how to place an order, please visit our website or contact our sales team.

3. What is the minimum order quantity (MOQ) for Ferrous ammonium sulphate?
Our minimum order quantity (MOQ) for Ferrous ammonium sulphate is designed to cater to both small-scale and large-scale needs. The MOQ depends on the packing size of the product which could range from 25 kg to 250kg.

4. How can I ensure the quality of Ferrous ammonium sulphate supplied by Multichem?                   
We adhere to stringent quality control processes to ensure that our products meet the highest standards of purity and effectiveness. They undergo rigorous testing and quality checks to guarantee that they comply with industry specifications. We provide a Certificate of Analysis (CoA) with every shipment to ensure transparency and quality assurance.