CAS 7758-99-8

Copper sulfate pentahydrate

五水硫酸铜

CuSO4·5H2OMW 249.69 g/molHS 283325 UN3077 · Class 9 · PG III

From the buying desk

Classified very toxic to aquatic life, so it ships as UN3077 environmentally hazardous substance and a marine pollutant. Feed, agricultural and electroplating grades differ in lead, arsenic and iron limits. Packed in 25 kg bags on pallets.

Import Card

Before you order copper sulfate pentahydrate 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
Blue vitriol, Bluestone, Cupric sulfate pentahydrate
Formula
CuSO4·5H2O
Molecular weight
249.69 g/mol
SMILES
O.O.O.O.O.[O-]S(=O)(=O)[O-].[Cu+2]
InChIKey
JZCCFEFSEZPSOG-UHFFFAOYSA-L
HS code (6-digit)
283325

Transport and hazard profile

Transport classification, UN number UN3077, IMDG Class 9, Packing Group III. Classified as a marine pollutant.

GHS hazard statements, Danger. H-codes, H302, H318, H400, H410. Refer to the substance SDS Section 2 for the full classification.

US and Australian rules for Copper sulfate pentahydrate

Read from the official lists by CAS 7758-99-8. Screening only: check the source before you ship, store or report.

California Prop 65

No entry

No entry for CAS 7758-99-8 in the OEHHA list dated July 31, 2026.

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OSHA exposure limit

No entry

No entry for CAS 7758-99-8 in 29 CFR 1910.1000 Tables Z-1 to Z-3.

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Australian exposure standard

No entry

No entry for CAS 7758-99-8 in the Safe Work Australia workplace exposure standards.

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CERCLA reportable quantity

No entry

No entry for CAS 7758-99-8 in 40 CFR 302.4 as read on September 24, 2026.

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EPCRA Tier II threshold

No entry

Not on the Extremely Hazardous Substances list, so the general 10,000 lb Tier II threshold applies where an SDS is required.

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Common applications

  • · Fungicides (Bordeaux mixture)
  • · Animal feed trace mineral
  • · Electroplating
  • · Mining flotation

Sourcing documentation chain

Every shipment of Copper sulfate pentahydrate 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 plus an MSA China DG packing certificate. For Incoterms reference see FOB, CIF, and CFR.

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