Phosphonic acid, P,P'-(1-hydroxyethylidene)bis-, sodium salt (1:x)
CAS 29329-71-3
Used in 10 industrial sectors tracked by the EPA.
US production1.0M lb
Import value, 2024$6.7B
Import volumeCBI
Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.
Top sourceJapan 30%
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. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.
Where It Comes From
Customs basis: HS 293149, 382499 · basket
EPA reports by year
- 2023
- US production 1.0M lb · Imports Confidential
- 2019
- US production Confidential · Imports Confidential
These shares come from HS customs code 293149, 382499, which covers 312 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
Source Countries
Country of origin for US imports, from Census customs data (2024).
JP 30%JapanKR 25%South KoreaCN 12%ChinaDE 8%GermanyCA 6%Canada
- Sweden
- Liechtenstein
- Indonesia
- Chile
- Ireland
- Vietnam
- Austria
- Brazil
- Colombia
- Israel
- Argentina
- Australia
- United Arab Emirates
- Bosnia and Herzegovina
- Turkey
- Denmark
- South Africa
- Philippines
- Norway
- Hungary
- Czech Republic
- El Salvador
- New Zealand
- Slovenia
- Morocco
- Monaco
- Finland
- Saudi Arabia
- Egypt
- Oman
- Slovakia
- Portugal
- Qatar
- Ukraine
- Lebanon
- Hong Kong
- Estonia
- Serbia
- Costa Rica
- Belarus
- Croatia
- Luxembourg
- Cambodia
- Bulgaria
- Greece
- Uruguay
- Romania
- Tunisia
- Peru
- Zimbabwe
- Dominican Republic
- Georgia
- Malta
- Sri Lanka
- Jamaica
- Armenia
EPA-registered manufacturers (4)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Dystar
Ecolab
Nalco- An Ecolab
Pulcra Chemicals
EPA-registered importers (3)
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
Basf
Zschimmer&Schwarz
Why It Matters
Sectors
FoodEnergyWaterTransportationMetals & MiningPlastics & RubberTextilesConsumer ProductsPaper & PrintingCore Chemicals
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 8 functional roles.
- •Cleaning agent in Paper Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Surfactant (surface active agent) in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Emulsifier in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (98%)Processing—incorporation into formulation, mixture, or reaction product
- •Corrosion inhibitor in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (2%)Processing—incorporation into formulation, mixture, or reaction product
- •Cleaning agent in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Anti-scaling agent in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (83%)Processing—incorporation into formulation, mixture, or reaction product
- •Dispersing agent in Miscellaneous Manufacturing (17%)Processing—incorporation into formulation, mixture, or reaction product
- •Anti-scaling agent in Services (8%)Use—non-incorporative activities
- •Anti-scaling agent in Transportation Equipment Manufacturing (2%)Use—non-incorporative activities
- •Corrosion inhibitor in Petrochemical Manufacturing (7%)Use—non-incorporative activities
- •Corrosion inhibitor in Oil and Gas Drilling, Extraction, and Support activities (8%)Use—non-incorporative activities
- •Anti-scaling agent in Food, beverage, and tobacco product manufacturing (5%)Use—non-incorporative activities
- •Corrosion inhibitor in Utilities (45%)Use—non-incorporative activities
- •Corrosion inhibitor in All Other Chemical Product and Preparation Manufacturing (2%)Use—non-incorporative activities
- •Corrosion inhibitor in All Other Basic Inorganic Chemical Manufacturing (2%)Use—non-incorporative activities
- •Corrosion inhibitor in Petroleum Refineries (5%)Use—non-incorporative activities
- •Intermediate in Textiles, apparel, and leather manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Anti-scaling agent in Plastics Product Manufacturing (3%)Use—non-incorporative activities
- •Anti-scaling agent in All Other Chemical Product and Preparation Manufacturing (1%)Use—non-incorporative activities
- •Anti-scaling agent in Petrochemical Manufacturing (2%)Use—non-incorporative activities
- •Anti-scaling agent in Mining (except Oil and Gas) and support activities (4%)Use—non-incorporative activities
- •Anti-scaling agent in Paper Manufacturing (4%)Use—non-incorporative activities
- •Anti-scaling agent in Utilities (10%)Use—non-incorporative activities
- •Anti-scaling agent in Petroleum Refineries (6%)Use—non-incorporative activities
- •Corrosion inhibitor in Plastics Product Manufacturing (3%)Use—non-incorporative activities
- •Corrosion inhibitor in Food, beverage, and tobacco product manufacturing (22%)Use—non-incorporative activities
- •Corrosion inhibitor in Transportation Equipment Manufacturing (7%)Use—non-incorporative activities
- •Corrosion inhibitor in Mining (except Oil and Gas) and support activities (4%)Use—non-incorporative activities
- •Corrosion inhibitor in Paper Manufacturing (5%)Use—non-incorporative activities
- •Corrosion inhibitor in Services (38%)Use—non-incorporative activities
- •Chelating agent in Textiles, apparel, and leather manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant
Chemical Identity
CAS29329-71-3
PubChem CID23687324
DTXSIDDTXSID8027953
FormulaC2H7NaO7P2
Mol. Weight228.01 g/mol
SMILESCC(O)(P(=O)(O)O)P(=O)(O)[O-].[Na+]
Data Sources
- EPA CompTox (DSSTox) · DTXSID8027953Retrieved 2026-04-06
- PubChem · compound 23687324Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
Phosphonic acid, P,P'-(1-hydroxyethylidene)bis-, sodium salt (1:x) (CAS 29329-71-3) https://chemicalindependence.com/chemical/29329-71-3/ EPA CompTox (DSSTox): DTXSID8027953. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8027953 PubChem: 23687324. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/23687324 EPA Chemical Data Reporting: 29329-71-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 29329-71-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293149,382499 for CAS 29329-71-3. Reporting year: 2024. https://usatrade.census.gov/