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Ammonium chromate ((NH4)2CrO4)

CAS 7788-98-9

Chromic acid (H2CrO4), ammonium salt (1:2)

Molecular structure of 7788-98-9
2 NH₄⁺
US productionNot reported
Import value, 2024$8M
Top sourceAustria 85%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

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

Where It Comes From

Customs basis: HS 284150 · basket

These shares come from HS customs code 284150, which covers 22 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
AT 85%AustriaIT 7%ItalyCN 6%ChinaIN 1%IndiaCO 1%Colombia

Why It Matters

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

Chemical Identity

CAS7788-98-9
PubChem CIDNot recorded
DTXSIDDTXSID3064857
FormulaCrH8N2O4
Mol. Weight152.07 g/mol
SMILES[NH4+].[NH4+].[O-][Cr]([O-])(=O)=O

Data Sources

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Brief citations

Ammonium chromate ((NH4)2CrO4) (CAS 7788-98-9) https://chemicalindependence.com/chemical/7788-98-9/ EPA TSCA Inventory: CAS 7788-98-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 284150 for CAS 7788-98-9. Reporting year: 2024. https://usatrade.census.gov/