Ca4 Si4 O12

ceramic

· Ca4 Si4 O12

Ca₄Si₄O₁₂ is a calcium silicate ceramic compound belonging to the family of silicate minerals and cements. This material is primarily encountered in cementitious systems and refractory applications, where it contributes to the binding matrix and thermal stability of composite structures. Engineers select calcium silicates for construction materials, thermal insulation, and high-temperature applications because they offer good chemical durability, low thermal conductivity, and the ability to form strong interfacial bonds in composite matrices.

cement and concrete systemsrefractory materialsthermal insulationhigh-temperature compositesbuilding materialsindustrial furnace linings

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	32,807.5	ksi	—
Shear Modulus(G)	13,624.8	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	4.216	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-3.037	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.

Ca4 Si4 O12

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental