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Silicate cement

CAS 1327-39-5

Silicic acid, aluminum calcium salt

Molecular structure of 1327-39-5
4 Al³⁺ · 4 Ca²⁺
US productionNot reported
Import value, 2024$138M
Top sourceChina 29%

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 284210 · basket

These shares come from HS customs code 284210, which covers 10 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 29%ChinaDE 28%GermanyCA 25%CanadaDK 6%DenmarkIT 2%Italy

Why It Matters

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

Chemical Identity

CAS1327-39-5
PubChem CIDNot recorded
DTXSIDDTXSID60890540
FormulaAl4Ca4O75Si25
Mol. Weight2170.305 g/mol
SMILES[Al+3].[Al+3].[Al+3].[Al+3].[Ca++].[Ca++].[Ca++].[Ca++].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O

Data Sources

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Brief citations

Silicate cement (CAS 1327-39-5) https://chemicalindependence.com/chemical/1327-39-5/ EPA TSCA Inventory: CAS 1327-39-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 284210 for CAS 1327-39-5. Reporting year: 2024. https://usatrade.census.gov/