Hexamethoxyphosphazene

• CAS: 957-13-1
• Catalog Number: ACM957131
• Category: Main Products
• Molecular Weight: 321.14
• Molecular Formula: C6H18N3O6P3
• Melting Point: 46 - 48 °C
• Appearance: Solid
• Application: Hexamethoxyphosphazene serves as a versatile compound with various applications. It can be utilized as a flame retardant in polyurethane foams, ensuring safety and protection against fire hazards. Additionally, it is commonly used as an additive in lithium ion batteries, enhancing their performance and longevity.

Case Study

Research on the Effects of Cyclotriphosphazenes Such as Hexamethoxyphosphazene from Lithium-Ion Battery Sources in Aquatic Systems

Jiang, Shengtao, et al. Environmental Pollution, 2025, 373, 126177.

The use of cyclotriphosphazenes (CTPs) as flame-retardant additives in lithium-ion battery electrolyte formulations has become widespread. This research analyzed six CTP compounds in surface water and sediment samples from areas around the LIB production plant. Analysis included six types of cyclotriphosphazenes (CTPs): hexafluorocyclotriphosphazene (HFCTP), ethoxy(pentafluoro)cyclotriphosphazene (EPFCTP), hexamethoxyphosphazene (HMCTP), pentafluoro(phenoxy)cyclotriphosphazene (PFPCTP), hexaphenoxycyclotriphosphazene (HPCTP) and hexachlorocyclotriphosphazene (HCCTP).
Key Findings
Detection of all analyzed CTPs occurred in surface water samples with frequencies ranging from 10% to 90%. The highest average concentration of CTPs was found in HCCTP at 55 ng/L followed by EPFCTP at 29 ng/L and HFCTP at 24 ng/L.
The detection frequencies for CTPs in sediment samples ranged between 19% and 95%. The most abundant CTPs in sediment samples measured 24 ng/g dry weight for EPFCTP and 20 ng/g dry weight for HPCTP. The highest mean log Koc value belonged to HPCTP at 3.5 ± 0.61 while HCCTP followed with 3.2 ± 0.69 trailed by EPFCTP at 2.8 ± 0.60 and last HFCTP at 2.6 ± 0.43.
Researchers used a high-throughput phenotypic screening assay to determine the toxic effects of CTPs on Caenorhabditis elegans. The effects of CTPs on four phenotypic traits-length, movement, survival and fecundity-showed variability while HCCTP proved most toxic between 50 to 500 μM concentrations.

Detection of Flame-Retardant Cyclotriphosphazene Electrolyte Additives Such as Hexamethoxyphosphazene in Urban Settings

Ge, Jiali, et al. Environmental Science & Technology Letters, 2024, 11(10), 1116-1121.

Lithium-ion battery electrolytes frequently contain cyclotriphosphazenes (CTPs) due to their flame-retardant properties. Despite being present in the environment it was only recently that scientists fully examined their concentrations and potential risks. The study sought to address the existing knowledge gap by performing screening and identification of six specific CTPs-HFCTP, EPFCTP, hexamethoxyphosphazene (HMCTP), PFPCTP, HPCTP, and HCCTP-in dust samples taken from different urban locations.
Key Findings
· The analysis confirmed the presence of all six CTPs in the samples while hexaphenoxycyclotriphosphazene (HPCTP) emerged as the most frequently detected compound.
· Dust samples from e-waste recycling facilities contained six CTPs at levels from 24.0 to 1790 ng/g, with a median value of 150 ng/g which exceeds concentrations in residential homes (median of 50.5 ng/g) and other urban sites.
· Analysis revealed different CTP composition patterns between indoor and outdoor settings which implies that pollution levels resulted from several sources or environmental behavior changes.
· Assessment results showed elevated ingestion of CTPs for e-waste recycling workers when compared with the general public.
· The newly discovered CTP HPCTP emerged as the primary pollutant because of its extensive presence alongside its abundant levels and hazardous properties.

Custom Q&A

What is the molecular formula of Hexamethoxyphosphazene?

The molecular formula of Hexamethoxyphosphazene is C6H18N3O6P3.

What is the molecular weight of Hexamethoxyphosphazene?

The molecular weight of Hexamethoxyphosphazene is 321.15 g/mol.

What are the synonyms for Hexamethoxyphosphazene?

The synonyms for Hexamethoxyphosphazene are 957-13-1, Cyclo-tris(dimethoxyphosphonitrile), hexamethoxycyclotriphosphazene, and 2,2,4,4,6,6-hexamethoxy-1,3,5-triaza-2lambda5,4lambda5,6lambda5-triphosphacyclohexa-1,3,5-triene.

When was Hexamethoxyphosphazene created?

Hexamethoxyphosphazene was created on July 19, 2005.

When was Hexamethoxyphosphazene last modified?

Hexamethoxyphosphazene was last modified on October 21, 2023.

What is the IUPAC name of Hexamethoxyphosphazene?

The IUPAC name of Hexamethoxyphosphazene is 2,2,4,4,6,6-hexamethoxy-1,3,5-triaza-2λ5,4λ5,6λ5-triphosphacyclohexa-1,3,5-triene.

What is the InChI of Hexamethoxyphosphazene?

The InChI of Hexamethoxyphosphazene is InChI=1S/C6H18N3O6P3/c1-10-16(11-2)7-17(12-3,13-4)9-18(8-16,14-5)15-6/h1-6H3.

What is the InChIKey of Hexamethoxyphosphazene?

The InChIKey of Hexamethoxyphosphazene is CNQBXJDCTHCEFG-UHFFFAOYSA-N.

What is the Canonical SMILES of Hexamethoxyphosphazene?

The Canonical SMILES of Hexamethoxyphosphazene is COP1(=NP(=NP(=N1)(OC)OC)(OC)OC).

What is the CAS number of Hexamethoxyphosphazene?

The CAS number of Hexamethoxyphosphazene is 957-13-1.