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Sulfates and sulfur salts

Copper sulfate

Also known as Copper(II) sulfate, Cupric sulfate, Cupric sulfate anhydrous

CAS 7758-98-7Formula CuO4SMolar mass 159.61 g/molEC 231-847-6
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 579 suppliers listed Drug substance
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Copper sulfate chemical structure, CuO4S, CAS 7758-98-7
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Grayish-white to greenish-white rhombic crystals or amorphous powder /SRP: somewhat wet/
Melting point
590 °C
Boiling point
650 °C
Density
3.6 g/cm³
Solubility
In water, 243 g/l @ 0 °C.
HS code
283325
Category
Sulfates and sulfur salts
UN number
UN 3288
Illustrative photo, off-white powder in an open kraft paper sack in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Copper sulfate?

Plain description, key identifiers and synonyms

Copper(II) sulfate is a metal sulfate compound having copper(2+) as the metal ion. It has a role as a sensitiser, an emetic and a fertilizer. It contains a copper(2+).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
copper sulfate
CAS number
7758-98-7 CAS number cross-checkedOther or deprecated CAS: 10124-44-4, 1332-14-5, 18939-61-2
EC numbers
231-847-6, 242-692-9
Molecular formula
CuO4S
UNII
KUW2Q3U1VV
MDL number
MFCD00010981
INCI name
COPPER SULFATE
InChIKey
ARUVKPQLZAKDPS-UHFFFAOYSA-L
InChI
InChI=1S/Cu.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
SMILES (canonical and isomeric)
[O-]S(=O)(=O)[O-].[Cu+2]

Synonyms

  • Copper(II) sulfate
  • Cupric sulfate
  • Cupric sulfate anhydrous
  • Copper sulphate
  • Copper(2+) sulfate
  • Copper monosulfate
  • Copper(ii) sulfate, anhydrous
  • Hylinec
  • Trinagle
  • Delcup
  • Cupric sulphate
  • Roman vitriol
  • Blue Copper
  • Copper sulfate (1:1)
  • Monocopper sulfate
  • Incracide 10A
  • Incracide E 51
  • BCS copper fungicide
  • Copper Sulfate Powder
  • CuSO4
  • Sulfate de cuivre
  • Copper sulfate (CuSO4)
  • Copper(2+) sulfate (1:1)
  • copper(II) sulphate
  • Snow Crystal Copper Sulfate
Show all 39 synonyms
  • Aqua Maid Permanent Algaecide
  • Copper (II) sulfate (1:1)
  • Copper monosulphate
  • Granular Crystals Copper Sulfate
  • MAC 570
  • Tobacco States Brand Copper Sulfate
  • Phelps Triangle Brand Copper Sulfate
  • Cupric sulphate anhydrous
  • Cupric sulfate, anhydrous
  • Cupric sulphate, anhydrous
  • Sa-50 Brand Copper Sulfate Granular Crystals
  • Aquatronics Snail-A-Cide Dri-Pac Snail Powder
  • Copper (as sulfate)
  • Cupric sulfate,anhydrous

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Grayish-white to greenish-white rhombic crystals or amorphous powder /SRP: somewhat wet/exp.
Odour
Pleasant odorexp.
Melting point
590 °Cexp.
Boiling point
650 °Cexp.
Density
3.6 g/cm³exp.
Autoignition temperature
Not flammableexp.
Solubility
In water, 243 g/l @ 0 °C.exp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
159.61 g/molcalc.
Exact mass
158.8813 Dacalc.
LogP (octanol/water)
-1.34calc.
Topological polar surface area
80.26 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
0calc.
Heavy atoms
6calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (15)
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3288

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Copper sulfate suppliers

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Where suppliers are based

579 suppliers in 59 countries

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Copper sulfate price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

The medicinal use of copper as an emetic was discontinued because of its toxicity.

Anhydr salt for detecting and removing trace amounts of water from alcohols and other organic compds, as fungicide.

Fungicide (component of bordeaux mixture).

Industrial uses: Laboratory chemicals, Intermediate, Flotation agent, Pigment, Flocculating agent, Soil amendments (fertilizers), Catalyst.

Consumer uses: Flocculating agent, Soil amendments (fertilizers), Catalyst, Chemical reaction regulator, Plating agent, Other.

Use classes: Algicides, Cosmetics, Plastics.

Cosmetic ingredient, INCI name COPPER SULFATE(skin conditioning)

Pharmacological actions

  • Antidotes
  • Emetics

Roles

  • aetiopathogenetic role
  • agrochemical
  • emetic
  • fertilizer
  • pharmaceutical
  • sensitiser

Functional uses

  • Biocide
  • Flavouring and nutrient
  • Pigment
  • Processing aids not otherwise specified
  • Softener and conditioner

Cosmetic functions

  • Skin conditioning

How it is made

Reaction of scrap or shot copper with dilute sulfuric acid and air, by-product recovered by crystallization from copper refinery liquors (srp: blue salt is dehydrated by heating to anhydrous cupric sulfate.)

Action of dilute sulfuric acid on copper or copper oxide (often as oxide ores) in large quantities with evaporation and crystalization.

Copper + sulphuric acid (salt formation), byproduct of copper electrolysis and etching process (product is generally only suitable for agricultural purposes)

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 029-004-00-0

Health and food

  • EU cosmetic ingredient inventory
  • Active ingredient in FDA approved drug labels

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Copper sulfate is traded under.

HS 2833.25Indicative HS code

Sulphates of copper

World exports in 2024
$711M
+10.0% vs 2023, imports $584M
2019 to 2024
Top exporters
  1. South Africa27.5%
  2. United States13.4%
  3. Mexico8.5%
Top importers
  1. United States18.1%
  2. Australia7.9%
  3. South Korea6.4%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Copper sulfate is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Copper sulfate, based on the data on this page

What is Copper sulfate?

Copper(II) sulfate is a metal sulfate compound having copper(2+) as the metal ion. It has a role as a sensitiser, an emetic and a fertilizer. It contains a copper(2+).

What is the CAS number of Copper sulfate?

The CAS registry number of Copper sulfate is 7758-98-7. Other or deprecated CAS numbers: 10124-44-4, 1332-14-5, 18939-61-2.

What is the molecular formula and weight of Copper sulfate?

The molecular formula of Copper sulfate is CuO4S and its molar mass is 159.61 g/mol.

What is Copper sulfate used for?

The medicinal use of copper as an emetic was discontinued because of its toxicity. Anhydr salt for detecting and removing trace amounts of water from alcohols and other organic compds, as fungicide. Fungicide (component of bordeaux mixture).

Is Copper sulfate hazardous?

Copper sulfate carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Copper sulfate?

Copper sulfate is usually classified under HS code 283325 (Of copper). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Copper sulfate?

CompoundList lists 579 suppliers of Copper sulfate in India, United States, China, United Kingdom and 55 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Copper sulfate in India?

230 suppliers in India list Copper sulfate on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Copper sulfate?

Suppliers quote Copper sulfate on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Copper sulfate

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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