Sodium phenylphosphinate

• CAS: 4297-95-4
• Catalog Number: ACM4297954-1
• Category: Main Products
• Molecular Weight: 163.07g/mol
• Molecular Formula: C6H5NaO2P+
• IUPAC Name: sodium;oxido-oxo-phenylphosphanium
• SMILES: C1=CC=C(C=C1)[P+](=O)[O-].[Na+]
• InChI: InChI=1S/C6H5O2P.Na/c7-9(8)6-4-2-1-3-5-6;/h1-5H;/q;+1
• InChI Key: HHJJPFYGIRKQOM-UHFFFAOYSA-N
• Appearance: White powder
• Complexity: 112
• Covalently-Bonded Unit Count: 2
• EC Number: 224-305-5
• Exact Mass: 162.992486g/mol
• Formal Charge: 1
• H-Bond Acceptor: 2
• H-Bond Donor: 0
• Heavy Atom Count: 10
• Monoisotopic Mass: 162.992486g/mol
• Rotatable Bond Count: 1
• UNII: 5YH1F4503C

Case Study

Sodium Phenylphosphinate in a MUF/α-ZrP@MnHP@APP Composite Coating for Flame-Retardant EPS

Zhang, Wei, et al. Chemical Engineering Journal (2025): 169600.

Sodium phenylphosphinate was utilized as a critical raw material in the formulation of a multi-component, integrated surface coating. It was combined with nano-zirconium phosphate (α-ZrP), manganese nitrate, ammonium polyphosphate (APP), and a melamine-modified urea-formaldehyde (MUF) resin binder. This hybrid system was constructed as a composite coating and applied to the surface of EPS foam. The formulation aimed to leverage a potential synergistic flame-retardant mechanism between the various components, including the phosphinate chemistry contributed by PPNa.
The treated EPS foam achieved a UL-94 vertical burning rating of V-0 and a high Limited Oxygen Index (LOI) of 57.8%. Critical fire hazard parameters were drastically reduced, including a 51.50% decrease in Total Heat Release (THR) and a 57.61% reduction in Total Smoke Production (TSP) compared to uncoated EPS. The coating promoted significant char residue formation during combustion, increasing from 0.14% for pristine EPS to 29.15% for the coated sample, indicating a condensed-phase protective mechanism.
Alongside its flame-retardant functionality, the final coating maintained excellent mechanical properties, strong interfacial adhesion to the EPS substrate, and good optical transparency, preserving the service characteristics of the base material.

Sodium Phenylphosphinate as a Superior Ligand Source for High-Efficiency Luminescent Lanthanide Complexes

Monteiro, Jorge HSK, et al. Journal of luminescence 154 (2014): 22-31.

Lanthanide complexes are pivotal in the development of advanced luminescent materials for applications in lighting, displays, and sensing. This study investigated the performance of sodium phenylphosphinate (NaPPA) as a ligand source for synthesizing europium and terbium complexes, comparing its effects on luminescent properties against analogous carboxylate and seleninate ligands. NaPPA was employed as the precursor to provide phenylphosphinate ligands. It was used to synthesize a series of lanthanide complexes, specifically [Ln(ppa)3(H2O)n]·mH2O (where Ln = Eu3+ or Tb3+).
Phenylphosphinate ligands formed bridging and chelating coordination modes, promoting polymeric structures that limited the presence of coordinated water molecules. The europium complex [Eu(ppa)3] showed the highest point symmetry around the Eu3+ center among all complexes studied, exceeding that of benzoate and seleninate analogues.
Phenylphosphinate-based lanthanide complexes displayed longer emission decay lifetimes, higher emission quantum efficiency and absolute quantum yield, and reduced non-radiative deactivation due to the absence of water molecules in the first coordination sphere.
Energy transfer characteristics: While changes in ligand triplet-state energy had limited influence on forward energy transfer to Eu3+ emitting levels, phenylphosphinate ligands significantly suppressed back energy transfer. This balance favored efficient population of the Eu3+ 5D0 emitting state.

Custom Q&A

What is the molecular weight of Sodium phenylphosphinate?

The molecular weight of Sodium phenylphosphinate is 163.07 g/mol.

What is the IUPAC name of Sodium phenylphosphinate?

The IUPAC name of Sodium phenylphosphinate is sodium;oxido-oxo-phenylphosphanium.

What is the InChI of Sodium phenylphosphinate?

The InChI of Sodium phenylphosphinate is InChI=1S/C6H5O2P.Na/c7-9(8)6-4-2-1-3-5-6;/h1-5H;/q;+1.

What is the Canonical SMILES of Sodium phenylphosphinate?

The Canonical SMILES of Sodium phenylphosphinate is C1=CC=C(C=C1)[P+](=O)[O-].[Na+].

What is the CAS number of Sodium phenylphosphinate?

The CAS number of Sodium phenylphosphinate is 4297-95-4.

What is the molecular formula of Sodium phenylphosphinate?

The molecular formula of Sodium phenylphosphinate is C6H5NaO2P+.

How many hydrogen bond donor counts does Sodium phenylphosphinate have?

Sodium phenylphosphinate has 0 hydrogen bond donor counts.

How many hydrogen bond acceptor counts does Sodium phenylphosphinate have?

Sodium phenylphosphinate has 2 hydrogen bond acceptor counts.

What is the topological polar surface area of Sodium phenylphosphinate?

The topological polar surface area of Sodium phenylphosphinate is 40.1?2.

Is Sodium phenylphosphinate a canonicalized compound?

Yes, Sodium phenylphosphinate is a canonicalized compound.