Na2SO4

Name: Na2SO4
Brand: MatWorld

ceramic

· Na2SO4

Sodium sulfate (Na2SO4) is an inorganic salt ceramic compound commonly encountered in two hydrated forms: the decahydrate (Glauber's salt) and anhydrous form. While not a structural ceramic in the traditional sense, it functions as an important industrial chemical with applications in thermal energy storage, chemical processing, and material synthesis where its phase-change properties and chemical stability are exploited. Engineers select sodium sulfate for its reversible hydration behavior, cost-effectiveness, and environmental benignity compared to synthetic phase-change materials, though its relatively low energy density and corrosive nature in hydrated form require careful system design.

thermal energy storage systemslatent heat storagesalt hydrate PCM applicationschemical processing and synthesisde-icing and road salt formulationspaper and pulp bleaching

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	7,211.3	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2600	-	DFT · OptB88vdW
Shear Modulus(G)	4,178.5	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.09877	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	0.000	eV	Measured
↳	5.436	eV	DFT · OptB88vdW
↳	8.710	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.455	-	DFT · OptB88vdW
↳	1.939	-	DFT · TBmBJ
Magnetic Moment(μB)	3.916	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00106	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000567	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-154.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	425.7	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	DFT · TBmBJ

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	1.578	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.3397	eV/atom	DFT · OptB88vdW
↳	-2.055	eV/atom	Measured

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

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.

Na2SO4 — Properties & Data | MatWorld

Na2SO4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental