Tungsten sulfide (WS2)
Drug ingredientThis drug ingredient has classified U.S. production volumes. EPA withholds the number as confidential business information.
The EPA did not publish how much of this chemical companies made or imported, or marked that amount confidential. Without that volume, ACID cannot calculate import dependency.
Where It Comes From
Customs basis: HS 283090 · basket
These shares come from HS customs code 283090, which covers 19 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.
- Philippines
- Mexico
- Netherlands
- Malaysia
- Singapore
Why It Matters
Appears in 1 drug and cosmetic product listings (FDA).
- •Tungsten Sulphuratum
Industrial Uses
Used in 2 sectors as 3 functional roles.
- •Catalyst in Petroleum Refineries (100%)Use—non-incorporative activities
- •Intermediate in Services (5%)Processing as a reactant
- •Processing aids, specific to petroleum production in Petroleum Refineries (2%)Use—non-incorporative activities
Chemical Identity
Data Sources
https://doi.org/10.23645/epacomptox.5588566
Archive: data/sources/comptox/dsstox_identifiers.csv
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/82938/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON
Archive: data/sources/pubchem_properties/82938.json
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr.csv
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr_industrial.csv