Ca(SbO3)2

ceramic

· Ca(SbO3)2

Calcium antimonate, Ca(SbO3)2, is an inorganic ceramic compound belonging to the antimonates family. It is primarily used as a flame retardant additive and smoke suppressant in polymer composites, particularly in halogen-free flame retardant systems for plastics, rubbers, and coatings. The material is notable for its ability to suppress smoke and toxic gas evolution during thermal degradation, making it valuable in applications where fire safety and environmental concerns drive material selection over traditional halogenated alternatives.

flame retardant additivespolymer compositessmoke suppression coatingshalogen-free fire safety systemswire and cable insulationconstruction materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Dielectric Constant (Relative Permittivity)(εr)2 entries	9.790	-	—
↳	6.775 range 3.692–9.857median of 2 measurements	-	—
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	—
Total Dielectric Tensor(ε)	Matrix (redacted)	-	—

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

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.

Ca(SbO3)2

Electrical Properties

Regulatory Screening

Environmental