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Sodium hydrogen sulfate

CAS 7681-38-1

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

Molecular structure of 7681-38-1
1 Na⁺
US productionCBI
Import value, 2024$3M
Top sourceSpain 34%

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

Customs basis: HS 283319 · narrow

EPA reports by year
2023
US production Confidential · Imports Confidential
2019
US production Confidential · Imports Confidential

HS 283319 covers only Sodium hydrogen sulfate, so these shares are Sodium hydrogen sulfate's own.

Source Countries
ES 34%SpainTR 32%TurkeyPH 20%PhilippinesCA 10%CanadaIN 2%India
EPA-registered manufacturers (9)
Billerud Escanaba
Hach
Hawkins
International Grand Investment
Jones-Hamilton
Show all 9
Macdermid
Nd Paper
Packaging Corporation Of America
Westrock
Domestic parents -- activity not disclosed (2)
Capital Recovery Group
Nalco- An Ecolab
EPA-registered importers (5)
Basf Se · DE Germany
Basf
Ecolab
Kik International
Wintersun International

Why It Matters

Sectors
AgricultureFoodMetals & MiningConsumer ProductsPaper & PrintingCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 8 sectors as 9 functional roles.

  • •Intermediate in Paper Manufacturing (100%)Processing as a reactant
  • •Bleaching agent in Paper Manufacturing (100%)Processing as a reactant
  • •Laboratory chemicals in Other (100%)Use—non-incorporative activities
  • •Cleaning agent in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Chelating agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Plating agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Etching agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Preservative in Food, beverage, and tobacco product manufacturing (20%)Processing—incorporation into formulation, mixture, or reaction product
  • •pH regulating agent in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (80%)Processing—incorporation into article
  • •Cleaning agent in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Cleaning agent in Fabricated Metal Product ManufacturingUse—non-incorporative activities
  • •Plating agent in Primary Metal Manufacturing (0%)Use—non-incorporative activities
  • •Bleaching agent in Miscellaneous Manufacturing (1%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS7681-38-1
PubChem CID516919
DTXSIDDTXSID3033983
FormulaHNaO4S
Mol. Weight120.06 g/mol
SMILESOS(=O)(=O)[O-].[Na+]

Data Sources

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Brief citations

Sodium hydrogen sulfate (CAS 7681-38-1) https://chemicalindependence.com/chemical/7681-38-1/ EPA CompTox (DSSTox): DTXSID3033983. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3033983 PubChem: 516919. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/516919 EPA Chemical Data Reporting: 7681-38-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 7681-38-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283319 for CAS 7681-38-1. Reporting year: 2024. https://usatrade.census.gov/