Description

Magnesium 2,4,8,10-Tetraoxa-3,9-Diphosphaspiro[5.5]Undecane-3,9-Diolate 3,9-Dioxide is a high-purity, organophosphorus-based magnesium salt with a complex spirocyclic structure, offering unique thermal and chemical stability. This compound is valued as a high-performance additive and catalyst in advanced polymer formulations, where it enhances flame retardancy and material properties. It is primarily sought by manufacturers in the plastics, specialty chemicals, and advanced materials sectors for demanding applications.

Application

• As a flame retardant synergist and smoke suppressant in engineering plastics, thermosets, and elastomers.
• As a catalyst or co-catalyst in specialized polymerization reactions and organic synthesis.
• As a stabilizing additive in high-temperature polymer processing to prevent degradation.
• In the formulation of intumescent coatings and fire-protective materials for construction and electronics.
• As a component in halogen-free flame retardant systems for wire and cable insulation.
• For research and development of novel coordination complexes and metal-organic frameworks (MOFs).
• Potential use as a precursor for ceramic materials or in specialty glass formulations.

Basic Information

Product Name	Magnesium 2,4,8,10-Tetraoxa-3,9-Diphosphaspiro[5.5]Undecane-3,9-Diolate 3,9-Dioxide
CAS No.	97890-21-6
Molecular Formula	C5H8MgO8P2
Molecular Weight	278.35 g/mol
Synonyms	Magnesium Bis(2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane-3,9-diolate 3,9-dioxide); Magnesium Spirocyclic Phosphonate; Magnesium PEPA Salt; Magnesium Salt of PEPA (Pentaerythritol Phosphonate); Magnesium 1-Oxa-4-phospha-cyclohexane 4-oxide derivative; FR-Mg PEPA; Mg-DOPO derivative (analogous); Organophosphorus Magnesium Complex
EINECS	Contact for details

Quality Control

Our production of Magnesium 2,4,8,10-Tetraoxa-3,9-Diphosphaspiro[5.5]Undecane-3,9-Diolate 3,9-Dioxide adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed against comprehensive specifications using advanced techniques like HPLC, ICP-OES, and NMR. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

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 material is hygroscopic (moisture-sensitive); keep the container tightly sealed in a dry environment to prevent absorption of moisture. Separate from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Magnesium (Mg) Content	8.5 - 9.2 %
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.2 %
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Sparingly soluble in water; soluble in polar organic solvents

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