K2Ca4Si8O21

ceramic

· JVASP-98451· K2Ca4Si8O21

K2Ca4Si8O21 is a calcium silicate ceramic compound belonging to the family of alkaline earth silicates, which are inorganic materials commonly studied for refractory and structural applications. This specific composition represents a research-phase material within the silicate family rather than a widely commercialized product; related calcium silicates are used industrially in cement chemistry, insulation systems, and high-temperature applications where thermal stability and low thermal conductivity are critical. Engineers would consider this material family for applications requiring chemical inertness, thermal resistance, and compatibility with extreme or chemically aggressive environments.

refractory liningsthermal insulation systemshigh-temperature ceramicscement chemistry researchchemical resistance applicationssilicate-based composites

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.09895	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	4.589	eV	—
Magnetic Moment(μB)	0.000	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	—
Formation Energy(ΔHf)	-3.043	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.

K2Ca4Si8O21

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental