Ferrozine Sodium CAS 69898-45-9

Introduction to Ferrozine Sodium

Ferrozine Sodium is an s-triazine derivative with a pyridyl nitrogen donor group and two sodium phenylsulfonate solubilizing groups. In aqueous solution, it binds selectively to ferrous iron to form a characteristic magenta chelate, serving as a standard colorimetric reagent for iron detection across environmental, agricultural and clinical laboratories.

Its fully water-soluble structure eliminates the need for organic co-solvents in sample preparation. The material is sensitive to UV light, which causes photobleaching and reduces chelating capacity. Store in sealed, light-proof containers below 25 °C, and discard faded working solutions.

Ferrozine Sodium Chemical & Physical Properties

Applications of Ferrozine Sodium

Drinking & surface water iron monitoring
Used as a colorimetric reagent for quantitative detection of dissolved ferrous iron in water samples. It enables sensitive iron measurement for environmental compliance and drinking water quality assessment.

Soil & sediment iron speciation
Applied in soil and sediment analysis to quantify exchangeable ferrous iron. It supports separate measurement of Fe²⁺ and total iron when paired with a reducing agent, for agricultural and geochemical testing.

Biochemical & clinical iron assays
Serves as a colorimetric detection reagent in serum ferritin and biochemical iron testing workflows. It delivers reliable iron quantification for clinical and life science research applications.

Storage & Safety Precautions for Ferrozine Sodium

• Store in sealed, original packaging at 2–25 °C, protected from UV light and direct sunlight. Do not store prepared aqueous solutions longer than 7 days; refrigerate if short-term storage is necessary.
• Not classified as hazardous under GHS. Avoid inhalation of fine powder; wear gloves and safety glasses during handling. Flush eyes with water if contact occurs.
• Non-DG for standard transport. Ship in cushioned packaging to protect containers from damage during transit.
• Verify reagent performance with a standard iron solution on receipt. Faded color or reduced absorbance indicates degradation.

Ferrozine Sodium FAQ

Q: How does Ferrozine Sodium differ from 1,10-phenanthroline for water iron analysis?

A: It dissolves directly in water without organic solvent, has higher molar absorptivity at 562 nm, and works across a broader pH range without adjustment.

Q: My Ferrozine solution turned pale pink. Is it still usable?

A: Pale pink signals photodegradation. Test with a standard Fe²⁺ solution; discard if absorbance at 562 nm falls below expected levels. Store in dark, sealed containers.

Q: Can Ferrozine Sodium measure Fe³⁺ directly?

A: No. It selectively chelates Fe²⁺. Add a reducing agent like ascorbic acid first to convert Fe³⁺ to Fe²⁺ for total iron measurement.