Ammonium sulfate
Drug ingredientCAS 7783-20-2
This drug ingredient has classified U.S. production volumes. EPA withholds the number 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.
Import value, 2024$331M
Top sourceCanada 42%
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
Customs basis: HS 310221 · exact
EPA reports by year
- 2023
- US production Confidential · Imports Confidential
- 2019
- US production Confidential · Imports Confidential
Source Countries
Country of origin for US imports, from Census customs data (2024).
CA 42%CanadaBE 21%BelgiumNL 13%NetherlandsNG 8%NigeriaDE 5%Germany
- Lithuania
- Mexico
- Czech Republic
- Malaysia
- Taiwan
- Trinidad and Tobago
- China
- Dominican Republic
- India
EPA-registered manufacturers (35)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Basf Se · DE Germany
Chemtrade Logistics · CA Canada
Mallinckrodt Plc · IE Ireland
Tessenderlo Groip Nv/Sa · BE Belgium
Tessenderlo Group Nv/Sa · BE Belgium
Show all 35
Wattusa Midco Holdings · GB United Kingdom
Advanced Micronutrient Products
Advansix
Archer Daniels Midland
Ati
Aurorium
Basf
Buckman Laboratories
Chemtrade Holdco Us
Cleveland Cliffs Burns Harbor
Cleveland-Cliffs
East Penn Manufacturing
Ecovyst
Evonik
Harcros Chemicals
Hawkins
Hydrite Chemical
Itafos Conda
J.R. Simplot
Jupiter Sulphur
Meh
Pci Nitrogen
Snf Holding
Tessenderlo Kerley
Tessenderlo Kerley, Inc. - Eufaula Facility
The Andersons
The Mosaic
Venator Chemicals
W. R. Grace & Co. - Conn.
Western Zirconium
Domestic parents -- activity not disclosed (5)
EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.
Icl Specialty Products North America
Kemira Water Solutions
Koch Industries
Polyventive
Veolia Water Technologies Treatment Solutions Usa
EPA-registered importers (21)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Eurochem Group Ag · CH Switzerland
Marubeni · JP Japan
Master Plant-Prod · CA Canada
Sociedad Quimica Y Minera S A · CL Chile
Sojitz · JP Japan
Show all 21
Acs Chemical
Avantor
Brenntag
Eurochem North America
Haifa North America
Helm America
International Raw Materials
Kidde Residential & Commercial
Livingston International
Macrosource
Nalco- An Ecolab
Nutrien Us Top
Sojitz Corporation Of America
Spectrum Laboratory Products
Sqm North America
Tannin
3 FDA-registered drug labelers
Jost Chemical Co.
JOST CHEMICAL POLAND SP Z O O
Macco Organiques, S.R.O.
Why It Matters
Sectors
FoodPaper & PrintingCore ChemicalsHealthEnergyConsumer ProductsMetals & MiningWaterTextilesAgriculture
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 16 sectors as 9 functional roles.
- •Soil amendments (fertilizers) in Agriculture, Forestry, Fishing and Hunting (2%)Processing—incorporation into formulation, mixture, or reaction product
- •Soil amendments (fertilizers) in Pesticide, Fertilizer, and Other Agricultural Chemical ManufacturingNot Known or Reasonably Ascertainable
- •Soil amendments (fertilizers) in OtherProcessing—repackaging
- •Viscosity modifiers in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Soil amendments (fertilizers) in Wholesale and Retail Trade (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Flocculating agent in Utilities (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Tanning agents not otherwise specified in Textiles, apparel, and leather manufacturing (100%)Processing—incorporation into article
- •Flame retardant in All Other Basic Inorganic Chemical Manufacturing (0%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Primary Metal Manufacturing (100%)Processing as a reactant
- •Intermediate in Utilities (10%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Paper Manufacturing (90%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in All Other Chemical Product and Preparation Manufacturing (100%)Processing as a reactant
- •Flocculating agent in Oil and Gas Drilling, Extraction, and Support activitiesUse—non-incorporative activities
- •pH regulating agent in Textiles, apparel, and leather manufacturing (100%)Processing—incorporation into article
- •pH regulating agent in Utilities (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in All Other Basic Inorganic Chemical Manufacturing (100%)Processing as a reactant
- •Flavoring and nutrient in Pharmaceutical and Medicine Manufacturing (100%)Use—non-incorporative activities
- •Soil amendments (fertilizers) in UtilitiesUse—non-incorporative activities
- •Oxidizing agent in Not Known or Reasonably Ascertainable (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Petroleum Refineries (100%)Processing as a reactant
- •Flocculating agent in All Other Basic Organic Chemical Manufacturing (100%)Processing—repackaging
- •Intermediate in Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (0%)Processing as a reactant
- •Intermediate in Fabricated Metal Product Manufacturing (100%)Processing as a reactant
Chemical Identity
CAS7783-20-2
PubChem CID6097028
DTXSIDDTXSID1029704
FormulaH8N2O4S
Mol. Weight132.14 g/mol
SMILES[NH4+].[NH4+].[O-]S(=O)(=O)[O-]
Data Sources
- EPA CompTox (DSSTox) · DTXSID1029704Retrieved 2026-04-06
- PubChem · compound 6097028Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- FDA National Drug Code directoryRetrieved 2026-04-07
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
Ammonium sulfate (CAS 7783-20-2) https://chemicalindependence.com/chemical/7783-20-2/ EPA CompTox (DSSTox): DTXSID1029704. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1029704 PubChem: 6097028. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6097028 EPA Chemical Data Reporting: 7783-20-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting FDA National Drug Code directory: CAS 7783-20-2. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 310221 for CAS 7783-20-2. Reporting year: 2024. https://usatrade.census.gov/