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Dolomite

CAS 16389-88-1

U.S. production volumes are classified as confidential business information.

Molecular structure of 16389-88-1
1 Ca²⁺ · 1 Mg²⁺
US productionCBI
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 unknown

Production 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 (1)
Minerals Technologies
Domestic parents -- activity not disclosed (1)
Sicer Usa
EPA-registered importers (16)
Heubach Holding S R L · LU Luxembourg
Marubeni · JP Japan
Master Plant-Prod · CA Canada
Advanced Micronutrient Products
Archer Daniels Midland
Show all 16
Corning Incorporated
Corning Incorporated, Blacksburg Plant
Dow Chemical
General Motors
Heubach Holding Usa
Koch
Livingston International
Macrosource
Mapei
The Sherwin Williams
Vetriceramici Usa

Why It Matters

Sectors
AgricultureTransportationConstructionMetals & MiningConsumer ProductsPaints & Coatings
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 9 sectors as 5 functional roles.

  • •Soil amendments (fertilizers) in Pesticide, Fertilizer, and Other Agricultural Chemical ManufacturingNot Known or Reasonably Ascertainable
  • •Intermediate 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
  • •Filler 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
  • •Pigment in Miscellaneous ManufacturingProcessing—incorporation into article
  • •Filler in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Filler in Miscellaneous Manufacturing (60%)Processing—incorporation into article
  • •Filler in Transportation Equipment ManufacturingProcessing—incorporation into article
  • •Filler in Furniture and Related Product ManufacturingProcessing—incorporation into article
  • •Filler in Wood Product ManufacturingProcessing—incorporation into article
  • •Anti-caking agent in Construction (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Filler in ConstructionUse—non-incorporative activities
  • •Soil amendments (fertilizers) in Wholesale and Retail Trade (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS16389-88-1
PubChem CID61833
DTXSIDDTXSID70892191
FormulaC2CaMgO6
Mol. Weight184.4 g/mol
SMILESC(=O)([O-])[O-].C(=O)([O-])[O-].[Mg+2].[Ca+2]

Data Sources

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Brief citations

Dolomite (CAS 16389-88-1) https://chemicalindependence.com/chemical/16389-88-1/ EPA CompTox (DSSTox): DTXSID70892191. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID70892191 PubChem: 61833. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/61833 EPA Chemical Data Reporting: 16389-88-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 16389-88-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting