CAS 10034-99-8
Magnesium sulfate heptahydrate
七水硫酸镁
From the buying desk
Fertilizer, industrial and pharmaceutical grades come from the same region but the specifications differ. It is not dangerous goods and not GHS classified by most notifiers. Ask for crystal size and caking agent details if it goes into blends.
Import Card
Before you order magnesium sulfate heptahydrate from China, see its register listing, the duty, anti dumping cases and a supplier check on one card, each with its source and date.
Identifiers
- Synonyms
- Epsom salt, Magnesium sulphate heptahydrate
- Formula
- MgSO4·7H2O
- Molecular weight
- 246.48 g/mol
- SMILES
- O.O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[Mg+2]
- InChIKey
- WRUGWIBCXHJTDG-UHFFFAOYSA-L
- HS code (6-digit)
- 283321
US and Australian rules for Magnesium sulfate heptahydrate
Read from the official lists by CAS 10034-99-8. Screening only: check the source before you ship, store or report.
California Prop 65
No entryNo entry for CAS 10034-99-8 in the OEHHA list dated July 31, 2026.
OSHA exposure limit
No entryNo entry for CAS 10034-99-8 in 29 CFR 1910.1000 Tables Z-1 to Z-3.
Australian exposure standard
No entryNo entry for CAS 10034-99-8 in the Safe Work Australia workplace exposure standards.
CERCLA reportable quantity
No entryNo entry for CAS 10034-99-8 in 40 CFR 302.4 as read on September 24, 2026.
EPCRA Tier II threshold
No entryNot on the Extremely Hazardous Substances list, so the general 10,000 lb Tier II threshold applies where an SDS is required.
Common applications
- · Fertilizer
- · Bath salts and cosmetics
- · Pharmaceuticals
- · Textile and leather processing
Sourcing documentation chain
Every shipment of Magnesium sulfate heptahydrate from China should include a per-batch COA, a current SDS per GB/T 17519 on the China side and the destination jurisdiction's standard on the import side, a packing list, a bill of lading, and a certificate of origin. For Incoterms reference see FOB, CIF, and CFR.
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Free download
Free PDF: the MSDS verification template Sourzi runs against the supplier sheet for every CAS number we book out of China.