Ferrous Ammonium Sulfate Hexahydrate (Mohr's Salt), ACS Reagent Grade

Features:

• Superior Oxidation Resistance: The presence of ammonium ions in the crystal lattice provides high stability against atmospheric oxygen, making it the most reliable ferrous iron source for titration
• COD Testing Criticality: An essential reagent for Chemical Oxygen Demand (COD) testing, where it is used to titrate the excess dichromate remaining after sample digestion
• Stoichiometric Precision: Meticulously manufactured to ensure a consistent molar mass, which is critical for calculating precise concentrations in back-titration procedures
• ACS Grade Purity: Guaranteed to meet stringent purity specifications, minimizing background interference from trace metals or nitrates in sensitive environmental assays

Safety & Regulatory Information:

WARNING! Irritant: This substance may cause irritation to the skin, eyes, and respiratory system.

• Personal Protection: Wear nitrile gloves, safety splash goggles, and a lab coat. Use in a well-ventilated area to avoid inhalation of crystalline dust.
• Storage: Store in a cool, dry area away from light. Moisture and heat can accelerate the transition from the ferrous (Fe²⁺) to the ferric (Fe³⁺) state, which will degrade the reagent's performance.
• Preparation Tip: When preparing a solution of Mohr's Salt, it is standard practice to add a small amount of sulfuric acid (H₂SO₄) to prevent the hydrolysis of the ferrous ions.