Description

Tetrairon Octasodium Pentakis(Pyrophosphate) is a complex inorganic phosphate salt with the CAS registry number 35725-46-3. This specialized compound serves as a multifunctional additive, offering unique properties for industrial processes that require controlled phosphate chemistry. It is primarily utilized in sectors such as water treatment, ceramics, and as a component in specialized detergent formulations where its specific iron-sodium pyrophosphate structure provides distinct advantages.

Application

• Water Treatment: Acts as a corrosion and scale inhibitor in industrial cooling and boiler water systems.
• Ceramics & Glass Manufacturing: Functions as a fluxing agent and opacifier to modify melting points and final product characteristics.
• Detergent & Cleaning Formulations: Serves as a builder and sequestering agent to enhance cleaning efficiency by controlling water hardness ions.
• Metal Surface Treatment: Used in phosphatizing and conversion coating processes for corrosion resistance and paint adhesion.
• Catalyst & Catalyst Support: Employed as a precursor or active component in certain heterogeneous catalytic reactions.
• Flame Retardant Synergist: Incorporated into materials to improve fire-resistant properties.
• Agricultural & Horticultural Additives: Utilized in certain fertilizer and soil amendment compositions.
• Laboratory & Research Chemical: Serves as a reagent for synthesizing other complex phosphates or for analytical purposes.

Basic Information

Product Name	Tetrairon Octasodium Pentakis(Pyrophosphate)
CAS No.	35725-46-3
Molecular Formula	Fe4Na8O29P10
Molecular Weight	Contact for details
Synonyms	Sodium Iron Pyrophosphate; Iron Sodium Pyrophosphate; Tetrafron Octasodium Pentakis(Diphosphate); Ferric Sodium Pyrophosphate; INS No. 552; Food Additive 552; E552; Sodium Ferric Pyrophosphate; Complex Phosphate Salt of Iron and Sodium
EINECS	Contact for details

Quality Control

Our Tetrairon Octasodium Pentakis(Pyrophosphate) is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency and compliance with agreed specifications, which may include parameters for assay, heavy metal content, and other relevant impurities. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee traceability and product integrity.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent caking and degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (as Fe4Na8O29P10)	≥ 95.0 %
Iron (Fe) Content	Contact for details
pH (1% solution)	Contact for details
Loss on Drying	≤ 5.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.