Ca2 Al4 Si2 O12

ceramic

· Ca2 Al4 Si2 O12

Ca₂Al₄Si₂O₁₂ is a calcium aluminosilicate ceramic compound belonging to the family of synthetic minerals and industrial ceramics. This composition is related to anorthite and gehlenite mineral phases, which form as intermediates in high-temperature ceramic systems and are commonly encountered in portland cement chemistry, refractory materials, and engineered ceramic matrices. Engineers select this phase or ceramics containing it for applications requiring thermal stability, chemical resistance, and mechanical strength at elevated temperatures, particularly in systems where alumina and silica sources naturally combine with calcium oxides.

refractory liningscement chemistrythermal barrier coatingskiln insulationslag managementhigh-temperature composite matrices

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	4.961 range 4.915–5.007median of 2 measurements	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-3.252 range -3.269–-3.235median of 2 measurements	eV/atom	—

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

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.

Ca2 Al4 Si2 O12

Electrical Properties

Other Properties

Regulatory Screening

Environmental