Na4 S2 O5

semiconductor

· Na4 S2 O5

Na₄S₂O₅ is an inorganic sodium sulfur oxide compound classified as a semiconductor, representing a mixed-valence sulfur oxide system with potential electrochemical and solid-state ionic properties. This material belongs to the family of sodium polysulfides and sulfur oxides, which are primarily of research interest rather than established industrial production, with applications being explored in energy storage, solid electrolytes, and electrochemical devices where its ionic conductivity and structural stability are under investigation.

solid-state batteriesionic conductorselectrochemical researchsulfur-based energy storageadvanced ceramics developmentmaterials research

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	40.20	GPa	—
Shear Modulus(G)	21.26	GPa	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.484	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.622	eV/atom	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

Na4 S2 O5

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control