Tricalcium silicate
CAS 12168-85-3
U.S. production volumes are classified as confidential business information.
US productionCBI
Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.
Top sourceNo public record
At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.
Why supply is unknownProduction is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023.
Where It Comes From
EPA reports by year
- 2023
- US production Confidential · Imports Confidential
- 2019
- US production Confidential · Imports Confidential
EPA-registered manufacturers (42)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Cementir Holding N V · IT Italy
Cementos Argos S A · CO Colombia
Crh Plc · IE Ireland
Gcc S A B De C V · MX Mexico
Heidelberg Materials Ag · DE Germany
Show all 42
Taiheiyo Cement · JP Japan
Unacem Corp S A A · PE Peru
Alamo Cement
Argos Newberry Cement Plant
Argos Usa
Ash Grove Cement
Calportland
Capitol Aggregates
Cemex
Cemex Construction Materials Atlantic
Cemex Construction Materials Florida
Cemex Construction Materials South
Crh Americas
Drake Cement
Eagle Materials
Fortaleza Usa
Gcc Dacotah
Gcc Of America
Gcc Rio Grande
Heidelberg Materials Us
Heidelberg Materials Us Cement
Holcim (Us)
Holcim Participation (Us)
Holcim Participations (Us)
Lehigh White Cement
Martin Marietta Marietta
Martin Marietta Materials
Mitsubishi Cement
Monarch Cement
Mountain Cement
National Cement Of California
Nevada Cement
Phoenix Cement
Rc Lonestar
St Marys Cement
Summit Materials
Tehachapi Cement
Domestic parents -- activity not disclosed (2)
EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.
Colas
Titan America
EPA-registered importers (10)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Crh Plc · IE Ireland
Crp Plc · IE Ireland
Heidelberg Materials Ag · DE Germany
Taiheiyo Cement · JP Japan
Teck Resources · CA Canada
Show all 10
Ash Grove
Heidelberg Materials, Us Cement Llc.
Houston Cement
St. Marys Cement U.S
Teck American Incorporated
Why It Matters
Sectors
EnergyConstructionTextiles
Downstream UsesNot recorded
FDA Shortage Status
Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."
No FDA shortage records
Industrial Uses
Used in 3 sectors as 5 functional roles.
- •Binder in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Adhesion/cohesion promoter in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (51%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (100%)Processing as a reactant
- •Sealant (barrier) in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Flux agent in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Binder in Oil and Gas Drilling, Extraction, and Support activities (10%)Processing—incorporation into formulation, mixture, or reaction product
- •Binder in Construction (100%)Processing—incorporation into formulation, mixture, or reaction product
Chemical Identity
CAS12168-85-3
PubChem CID25523
DTXSIDDTXSID6049804
FormulaCa3O5Si
Mol. Weight228.32 g/mol
SMILES[O-][Si]([O-])([O-])[O-].O=[Ca].[Ca+2].[Ca+2]
Data Sources
- EPA CompTox (DSSTox) · DTXSID6049804Retrieved 2026-04-06
- PubChem · compound 25523Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
Brief citations
Tricalcium silicate (CAS 12168-85-3) https://chemicalindependence.com/chemical/12168-85-3/ EPA CompTox (DSSTox): DTXSID6049804. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6049804 PubChem: 25523. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/25523 EPA Chemical Data Reporting: 12168-85-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 12168-85-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting