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Magnesium hexafluorosilicate

CAS 16949-65-8

Companies reported imports and no US production of this chemical to EPA for 2023.

Molecular structure of 16949-65-8
1 Mg²⁺
US productionZero
Import value, 2024$87M
Import volume88.2K lb
Import dependency100%
Top sourceChina 71%

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Magnesium hexafluorosilicate · US import value by year
$56M2013$158M2022$87M2024$88M2025

2013: $56M · Peak 2022: $158M · 2024: $87M · 2025: $88M

Where It Comes From

Customs basis: HS 282690 · basket

EPA reports by year
2023
US production Zero · Imports 88.2K lb
2019
US production Zero · Imports 44.1K lb

These shares come from HS customs code 282690, which covers 32 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 71%ChinaKR 12%South KoreaJP 5%JapanDE 4%GermanyBE 3%Belgium
EPA-registered importers (1)
Florida Chemical Supply

Why It Matters

Sectors
Construction
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

  • •Binder in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing)Not Known or Reasonably Ascertainable

Chemical Identity

CAS16949-65-8
PubChem CID61861
DTXSIDDTXSID70884950
FormulaF6MgSi
Mol. Weight166.38 g/mol
SMILESF[Si-2](F)(F)(F)(F)F.[Mg+2]

Data Sources

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Brief citations

Magnesium hexafluorosilicate (CAS 16949-65-8) https://chemicalindependence.com/chemical/16949-65-8/ EPA CompTox (DSSTox): DTXSID70884950. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID70884950 PubChem: 61861. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/61861 EPA Chemical Data Reporting: 16949-65-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 16949-65-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 282690 for CAS 16949-65-8. Reporting year: 2024. https://usatrade.census.gov/