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Disodium sulfate decahydrate

CAS 7727-73-3

EPA’s 2019 records show zero U.S. production of this chemical.

Molecular structure of 7727-73-3
10 H₂O · 2 Na⁺
US productionZero
Import value, 2024$11M
Top sourceCanada 79%

EPA lists this chemical for 2019 but publishes zero or no volume for both production and imports.

Why supply is unknown

Production is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 283311 · narrow

EPA reports by year
2019
US production Zero · Imports Zero

These shares come from HS customs code 283311, which covers 2 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CA 79%CanadaCZ 5%Czech RepublicIN 5%IndiaCN 5%ChinaMX 2%Mexico
Domestic parents -- activity not disclosed (1)
Target

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS7727-73-3
PubChem CID62649
DTXSIDDTXSID80228003
FormulaH20Na2O14S
Mol. Weight322.2 g/mol
SMILESO.O.O.O.O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[Na+].[Na+]

Data Sources

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Brief citations

Disodium sulfate decahydrate (CAS 7727-73-3) https://chemicalindependence.com/chemical/7727-73-3/ EPA CompTox (DSSTox): DTXSID80228003. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID80228003 PubChem: 62649. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/62649 EPA Chemical Data Reporting: 7727-73-3. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283311 for CAS 7727-73-3. Reporting year: 2024. https://usatrade.census.gov/