Mg2Al4Si5O18

ceramic

· JVASP-98581· Mg2Al4Si5O18

Mg₂Al₄Si₅O₁₈ is a magnesium aluminosilicate ceramic belonging to the family of feldspathoid and tectosilicate minerals. This compound is the primary constituent of nepheline-based ceramics and refractories, valued for its thermal stability and resistance to chemical attack at elevated temperatures. It is encountered in industrial refractory applications, particularly in glass melting furnaces, kiln linings, and high-temperature processing environments where thermal shock resistance and dimensional stability are critical; it is also investigated in advanced ceramic composites and as a precursor phase in specialty glass and porcelain formulations where its low thermal expansion and chemical inertness offer advantages over conventional feldspars.

refractory liningshigh-temperature furnacesglass melting vesselsthermal shock resistance applicationsceramic matrix compositesadvanced porcelain formulations

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.08869	lb/in³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	4.770	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.01060	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.083	eV/atom	DFT · OptB88vdW

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.

Mg2Al4Si5O18 — Properties & Data | MatWorld

Mg2Al4Si5O18

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental